CN101394809A - Method and apparatus for controlling peripheral image position for reducing progression of myopia - Google Patents

Method and apparatus for controlling peripheral image position for reducing progression of myopia Download PDF

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Publication number
CN101394809A
CN101394809A CNA2007800074304A CN200780007430A CN101394809A CN 101394809 A CN101394809 A CN 101394809A CN A2007800074304 A CNA2007800074304 A CN A2007800074304A CN 200780007430 A CN200780007430 A CN 200780007430A CN 101394809 A CN101394809 A CN 101394809A
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vision
optical
eyes
peripheral
retina
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CN101394809B (en
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A·霍恩
E·L·史密斯三世
P·桑卡里杜尔格
B·A·霍尔登
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Brien Holden Vision Institute Ltd
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Institute for Eye Research Ltd
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Priority claimed from PCT/US2007/060395 external-priority patent/WO2007082268A2/en
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Abstract

A method and apparatus are disclosed for controlling optical aberrations to alter relative curvature of field by providing optical devices and methods comprising the repositioning of peripheral off-axis focal points relative to the retina to produce stimulus for influencing the progression of refractive error while simultaneously controlling the position of the central focal point near to the retina to provide clear central vision and simultaneously providing zones of controlled peripheral defocus and other optical aberrations to improve peripheral vision for select directions of gaze.

Description

Be used to control peripheral picture position to slow down the method and apparatus of myopia progression
The cross reference of related application
The application requires the priority of 60/758, No. 316 of submitting to 12 days common unsettled and commonly assigned January in 2006 and 60/782, No. 658 U.S. Provisional Patent Application submitting on March 15th, 2006.
Technical field
The application relates generally to be used for the treatment of the method and system of ametropia development.Novel and the non-obvious progress of its representative on 7,025, No. 460 commonly assigned United States Patent (USP)s.
Specifically, the present invention relates to following method, system and equipment, it is by control off-axis aberration, thereby handles crooked (curvature) relatively of visual pattern field and provide imaging clearly to delay simultaneously on the non-central direction of the vision of selecting and point or eliminates the myopia progression of individuality.
Myopia (myopia is also referred to as shortsightedness or nearsightedness) is a kind of ametropia of eyes.Ametropia, promptly eyes focus on the incorrect sand-blind eyes optical states that causes, comprise myopia, hypermetropia (hyperopia is also referred to as farsightedness or longsightedness) and dioptric astigmatism.In myopia, the visual focusing defective makes the image focusing of remote object (project in the eyes scene of watching) on amphiblestroid the place ahead rather than retina, thereby object presents fuzzy at a distance.Myopia is common ocular disorders, has influenced about 1/4th U.S. adult population, and this popularity degree is also increasing.In some countries, the most significant is in the area, Asia, and the near-sighted popularity degree of school age population is higher than 80% in some countries at present.Therefore, the world population of significant percentage suffers from myopia to a certain degree, in order to see clearly Chu, needs the optical correction of certain form.Also known myopia develops, and is irrelevant with the age of outbreak, and myopia is tending towards increasing on degree, needs more and more stronger rectification.High myopia can cause the retina patient's condition of some form, and follows the increase of retina shedding, posterior capsular cataract and glaucoma risk.What in addition, follow this ocular disorders is individual, society and financial burden to individuality and group.It comprises the direct cost (amounting up to tens dollars its every year) and the indirect costs such as the productivity and quality of life of vision correcting and management.The vision of myopia and potential pathology effects and the inconvenience that causes thereof and make expectation have efficient strategy to the cost of individual and group to prevent or postpone near-sighted outbreak, stop or slowing down development, perhaps be limited in child and the young central degree that myopia occurs.
Current, the general blurred vision of improving the individuality that comprises that near-sighted ametropia causes by the employing optical correction.By using the vision correcting device of wide region, comprise glasses, contact lens (contact lenses), refractive surgery, carry out these optical corrections.These correct the focal position that has optically changed visual pattern, are located on the retina, thereby recover vision clearly.Yet these are corrected for slowing down or stop near-sighted development do not have what effect, discover according to some that at least in fact these rectifications may promote near-sighted development.
The strategy that prevents or slow down myopia that has proposed comprises pharmaceutical intervention, as atropine (atropine) or pirenzepine (pirenzipine).Yet the potential hazard relevant with the life-time service of this medicine may cause this Therapeutic Method not attractive.Other strategy comprises the use visual exercise.This Therapeutic Method can only carry out occasionally in practice and note the part needs of patients is strict, because potential wrong the use or not the accepting of patient (compliance), the value of this Therapeutic Method may be problematic.
Because ametropic individuality has been worn the vision correcting device usually and has been worn for a long time usually, so based on optical and can be included in that being used in the vision correcting device slows down or the method for eliminating myopia progression is very attracting, because can guarantee the individual treatment for a long time of accepting and realize.
Background technology
Develop multiple optical means for many years and attempted to slow down or eliminate the development of myopia.These methods are attempted the vision correcting device that it is relevant and are extended to a kind of vision (being ametropia) therapy equipment.In this article, " the vision correcting device " that adopt optical means to eliminate or to slow down ametropic development is called " vision therapy equipment ".
The optical means that a kind of quilt is extensively attempted is to specify " the correcting (under-correction) down " that is lower than the required focal power of its ametropia of abundant rectification to the wearer.Because the position of visual pattern is not repositioned onto on the retina, so constant blurred vision is the inherent unwanted results of this time antidote.Because constant blurred vision, the wearer may be unwilling to accept this Therapeutic Method of continuation.
Other optical means adopts the glasses of bifocus or progressive aspherical lens or the potential strategy that the bifocal contact lens conduct is used to postpone myopia progression.For example, the US6 of Kris, 343,861 disclose use is designed to slow down the progressive ophthalmic eyeglass of adolescent myopia development speed.The US6 of Aller, 752,499 disclose a kind of method for the treatment of the patient's who also shows as the near point esophoria myopia progression by selectivity appointment bifocal contact lens.The WO2006/004440 of Phillips disclose use various configurations with vision correcting zone and myopic defocus zone bifocal contact lens to tackle near-sighted development.The US2006/0082729 of To has described and has used the Fresnel type eyeglass that produces two refractive powers (that is bifocus effect) to treat the development of myopia.
Yet, the research of the method effect that adopts the bifocus device is generally shown to have only limited effect.Under the situation of bifocus or Progressive eyeglasses, can not guarantee that the wearer of near work accepts always to watch by the closely extention of glasses.Especially true for the child.Up to the present already used bifocal contact lens be simultaneously vision bifocal-promptly, in eye, produce remote and close-up images simultaneously.This bifocus has reduced whole retinal images quality and the undesirable visual problem of known generation, as dizzy defect, dazzle and afterimage.
Other optical means seeks to slow down by the aberration that processing enters into the visual pattern of eye the development of myopia." aberration " is meant the optical glass that the unfavorable condition of the visual pattern that produces with optical glass or system is relevant or the optical property feature of system.How sharp keen when ideally forming sharp keen visual pattern clearly (with respect to the diffraction-limited as the final physical restriction that can produce focusing) and form this visual pattern in desired locus, this image is called as aberrationless.When departing from this perfection state, this visual pattern is called as and has aberration.Some think that certain differing can influence the development of myopia.
Developed with the axle of handling sighting device and gone up (perhaps axle) optical property or it goes up the relevant several optical meanss that are used for the treatment of myopia progression of aberration." on the axle " or " axle " is the direction of light of describing with respect to visual direction.It is recess (fovea) that retina (photosensitive layers of eyes) is gone up the sharpest point of vision.This is the most concentrated zonule of photosensitive optical receiver on the retina.When individual need was carefully watched a visual object, the direction that he stares by change (by the rotation of head or the rolling up and down of eyeball) was carried out, and made the point of paying close attention in the image be positioned on the recess of eyes.This process that the point that eyes are the most responsive is aimed at the visual object of paying close attention to is called as " watching (fixation) attentively "." on the axle " or " axle " is meant the light that arrives eyes from the point in the visual object that is imaged onto on the recess, the point of promptly watching attentively, perhaps come comfortable dead ahead to the time.In the case, the light of arrival eyes approximately is parallel to axis oculi.
For example, the US6 of Collins, 045,578 discloses a kind of method for the treatment of or prevent myopia by the positive spherical aberration (aberration on the axle) of introducing in the eyes of myopia.The US2003/0058404 of Thorn has described and has a kind ofly measured and corrected the wave front aberration of the parallel rays that enters into eyes to prevent or to postpone the method for myopia progression.Thereby the US2004/0237971 of Radhakrishnan has described myopia was postponed or slowed down in the processing of aberration with the relative position of control modulation transfer function (MTF) peak value development.
The general effect of optical processing method also is not unequivocally established on the axle.At least on some described axles in the optical means (for example, the introducing of spherical aberration,positive), this method must reduce visual acuity and can cause not accepting of part patient, so this method has and the identical shortcoming of following antidote.
Handle and control the optical focus of direction on the positive front axle and these optical meanss of aberration are compared with relating to, US7,025,460 disclosure has proved by the outer optical signature of axle controls myopia progression.With opposite on the axle, " axle is outer " is meant when light arrives eyes from the direction beyond the dead ahead; That is, the picture point corresponding to the outer object-point of axle departs from recess.The outer visual direction of axle is also referred to as " surrounding visual field " that " peripheral vision " and this object-point (point in the visual scene) belong to the outer direction of axle (or abbreviate as " peripheral field ").When light direction outside axle arrived eyes, the dead ahead that it and eyes are watched was at angle.This angle is called as " rink corner " sometimes.
US7,025,460 has described one group of proof by controlling test and the observation that peripheral vision image can realize postponing or eliminating the ocular growth that causes myopia progression best.From these observations, US7,025,460 has instructed the position of a kind of peripheral by handling (that is, axle is outer) visual pattern point or the crooked relatively optical means for the treatment of myopia progression of visual pattern image field (field).
Be noted that filed curvature (curvature of field) relates to the axle outer optical aberration of (visual pattern) peripheral picture point with respect to front and back position (that is, the more preceding or back) type of preferred image receiving surface (being retina in eyes).Filed curvature be different from basically spherical aberration (for example, US6,045,578 and US2003/0058404 instructed).Spherical aberration be describe all from same just before (along the vision optical axis) direction the but whether light that passes the difference on the eye pupil focuses on the optical aberration of same picture point.Therefore spherical aberration relates to picture point from its corresponding object-point of dead ahead and is focused to such an extent that how good (or sharp keen) arranged, and filed curvature relate to picture point from numerous different directions in the visual scene (that is, from different rink corners) be positioned in the space where (front and back or position) forward-backward and with they be focused have how sharp keen irrelevant.The set description of picture point that can all are such is an imaging surface.So filed curvature relates to the shape and the position of imaging surface.
As a comparison, be further noted that it is that each visual object point produces two picture point (this is the feature of synchronizing visual bifocal contact lens) that bifocus optical means (for example, US6,752,499 are instructed) is sought.Therefore, certainly lead to " dual image "-one from bifocal nearly burnt zone, one from bifocal burnt zone far away.As a comparison, only be that each visual object point produces a picture point to the control of filed curvature, but arrange the front and back position of this picture point with respect to the image receiving surface.
US7,025, an aspect of 460 is the method for a kind of design vision therapy equipment (for example contact lens, glasses, corneal inlay or veneer or the like) of being worn by the wearer, the position that peripheral picture point is handled in this vision therapy equipment (promptly, handle the crooked relatively of image field) make to produce and stimulate slowing down or to eliminate wearer's myopia progression, and simultaneously on the retainer shaft position of visual pattern point on retina/recess with maintenance wearer's good visual acuity.
According to US7, during the therapy equipment of 025,460 instruction design vision, (promptly according to the definite shape of the imaging surface that will present to eyes, the bending relatively of image field), between other optical image residual quantity of handling the crooked relatively of image field and causing, may need some compromises.Since most of traditional optical visual apparatus for correcting only have usually two optical surfaces (front, a back), so when the design eyeglass when handling image field crooked relatively, because the design parameter of restriction optical design degree of freedom (for example, the refractive index of lens surface shape, material, lens thickness, with the distance of pupil etc.) number limited, some other optical aberrations may be introduced or be changed concomitantly.Can classify according to the known von Seidel of the technical staff aberration in optics and lens design field and describe these other optical aberrations (that is the aberration beyond the filed curvature).These optical aberrations comprise spherical aberration (described above) and coma, oblique astigmatism and distortion.In this article, we are called these optical aberrations " other optical aberration ".
The aberration of another classification is a chromatic aberration.How the light that this aberration relates to different colours (wavelength) produces different focal positions, and it is to notion of the present invention and not influence of the suitability.
With regard to other optical aberration, can whether keep approximate alignment and the visual optics device roughly is divided into two groups with eyes view direction basically according to the visual optics device with different eye gaze directions.
First group of vision correcting device can be called " formula placed in the middle " vision correcting device, comprises contact lens, intraocular lens (intra-ocular lenses), veneer (on-lays), inlays (in-lays) and anterior chamber intraocular lens (anterior chamber lenses).The optical axis of these vision correcting devices has nothing to do with the view direction maintenance approximate alignment of eyes and with its gaze-direction basically.For formula vision correcting device placed in the middle,, arrive recess after passing the pupil of eyes again from the always approximate central area of passing this device of the light of visual object on the axle.
Second group of vision correcting device can be called " centrifugal " vision correcting device, comprises glasses and transform (for example, translating bifocal point type, translating bifocal) contact lens.Device in this group does not keep aiming at the view direction of eyes according to the direction of eye gaze.
For formula vision correcting device placed in the middle, under aforesaid way, the part corresponding to the outer direction of axle or periphery by these Optical devices may produce undesirable other optical aberration.This also is applicable to when eyes and is in that dead ahead is stared the position and visual direction is passed or centrifugal vision correcting device during near the optical center of device.
For centrifugal vision correcting device, other optical aberration that is produced by the periphery of these Optical devices also may influence the recess vision.When this occurs in eyes and is not in dead ahead and stares.When eyes were in dead ahead and stare, the sight line of eyes located to pass this device being called " High eye point ".Typically, except some special applications, for the optimum visual performance, with High eye point be positioned near or be in the optical center of this device.When eye rotation departs from dead ahead and stares, it will no longer be watched by the center of this device.On these " off-axis " gaze-direction (that is, the direction of staring be not dead ahead to), the image that produces on the recess zone will be made of the light of the peripheral part that passes this device.This image causes and bears other optical aberration that is produced by the peripheral part of this device.
Except undesirable other optical aberration that the peripheral part by this device produces, adopt by US7, the centrifugal vision correcting device of 025, the 460 myopia method of being instructed also may be owing to defocusing during staring at off-axis causes bluring.US7,025,460 the reorientating of peripheral focus that is used to postpone myopia progression of being instructed must cause defocusing peripheral image.Although this is the feature of wishing for postponing myopia progression when eyes are in dead ahead and stare, but when eyes are in off-axis and stare, the image that produces on the recess zone is produced by the light of the peripheral part that passes this device, therefore will cause a certain amount of defocusing.Therefore, when eyes are guided into when watching the peripheral vision object attentively by centrifugal vision correcting device, owing to defocus and other optical aberration, this image occurs fuzzy.
This other optical aberration (and during off-axis is stared defocusing under the centrifugal vision correcting device situation) is enough little amount comparatively speaking, remain acceptable (wearer will enjoy produce to be stimulated to postpone or to eliminate the benefit of myopia progression, therefore can preferentially prepare to compromise) for wearer's vision aspect some of visual performance.Yet other wearer may need vision very important certain selected district or a plurality of district, therefore needs priority.These districts that are referred to herein as " vision is preferentially distinguished " represent the district of the particular visual direction (that is, visual field direction or angle) of the vision that need get well corresponding to the wearer on the eyeglass.
When the explanation wearer that gives some instances below can be chosen in has the preferential district of vision and these relevant preferential districts of vision and where can be positioned at go this device on their the vision correcting device.
In an example, the wearer can be engaged in vehicle drive, and not only before just, need good vision on (on the axle) direction (as US7,025,460 method provided), and also need the vision of usefulness along the horizontal line of representing vision " inswept " to be positioned on the road or to stride across a plurality of visual objects (in a plurality of gaze-direction) of road.Owing to drive the job requirement wearer mainly along horizontal line vigilance (for example, checking the traffic on the cross-street at the crossing) visually, preferentially distinguish by the representative that brings that is positioned on the horizontal line so need with the selected vision of vision.Be noted that owing to reduce when the density of optical receiver departs from recess on the retina, so the useful vision of peripheral vision is relative term in the context; There is physiological restriction in the visual acuity at the peripheral retina place that reduces during therefore for off-center recess vision.
In another example, the wearer can be engaged in the central field that requires sharp identification and distinguish extension (that is, tightly around dead ahead to the zone) in the vision work of epicritic vision object.The example of this work can comprise that the requirement operator watches radar screen or computer monitor and fast detecting and identifies the radar operation of point.For this wearer, by according to US7,025,460 method provides good axle goes up and " closely " axle on the (periphery of central point but near the zone of central point, being also referred to as " other center (para-central) " zone) scope of visual acuity is (promptly, visual zone or) may be not enough, and the preferential district of vision of the good wideer other center of vision is provided may be useful.The selected visual area of this example can be facing to the visual field of the size that is approximately equal to vision work (for example, computer monitor, radar display unit, musician's music score, artistical easel, architect's drawing board etc.), on visual axis approximate middle zone.
In another example, when the wearer of centrifugal vision correcting device (as a pair of glasses) was reading, eyes are tending towards downwards and convergence (that is slight direction near nose).On this gaze-direction, each eye by this device be positioned at than High eye point relative lower and more " near nose (nasally) " (the employed term of eye protection practitioner, promptly right eye left, left eye is to the right) point watch.This point is called as " near-sighted point ".Therefore, for centrifugal vision correcting device, the wearer who is engaged in long-time reading work (for example, secretarial work, books check and correction, the fine arts, as engraving, embroidery) go up the vision visual acuity that the preferential district of vision that may also need at myopia point place to select provides by the good axle at device center except needs.Usable size in the preferential district of myopia point place vision depends on the size of work materials (for example, page, artistic products etc.) nearby.As mentioned above, be desirable to provide further improvements in methods and the vision therapy equipment that is used to postpone or stop myopia progression.
Summary of the invention
Embodiments of the invention relate generally to be used to postpone or stop the method and apparatus of ametropia development.Entire method comprises: 1) thus reorientate peripheral image so that the development of stimulate postponing or eliminating myopia or hypermetropia to be provided; And 2) by being positioned at center image on recess/retina or keeping good central vision near it; And 3) provide one or more visions preferentially to distinguish for selected visual direction simultaneously basically, and control or reduce to defocus and/or the useful vision of other optical aberration on those selected directions, to provide.Be used to realize that the device of this method can include but not limited to glasses, contact lens (comprising the contact lens that is used for orthokeratology, cornea veneer, corneal inlay, anterior chamber intraocular lens (anterior chamber lenses), intraocular lens (intra-ocular lenses)) etc.Preferable methods can comprise the technology that includes but not limited to cornea refractive surgery (for example, corneal refractive resection operation, LASIK, LASEK), orthokeratology etc.
One embodiment of the present of invention relate to a kind of method of postponing myopia progression, this method is by providing stimulation to postpone or to stop the development of myopia to eyes, by reorientate (when eyes be in stare just before during view direction from axle outside visual object point) peripheral vision image, make the imaging surface in two relevant with astigmatism at least imaging surfaces be positioned on the retina or amphiblestroid front than the front, and by the location (when eyes be in stare just before during view direction from axle on visual object point) the central vision image, thereby make this image be near the recess of eyes or the central vision that provides to eyes of while basically on the recess; And provide simultaneously basically corresponding to one or more visions of selected eye gaze direction and preferentially distinguish, preferentially distinguish other optical aberration and/or defocus controlled or the useful vision that provides to eyes with along this selected direction of gaze is provided for this vision.
The optical visual therapy equipment that can be used for realizing said method (for example, lens, contact lens, corneal inlay or veneer, the intraocular lens, anterior chamber intraocular lens etc.) a preferred disposition comprises: the vision treatment region on the fundamental region of this device, wherein the optical design in this vision treatment region is processed into and combines the peripheral vision image that forms by this vision therapy equipment with the optical texture of eyes and be relocated, make when dead ahead is stared, at least the imaging surface than the front in two relevant with astigmatism imaging surfaces is positioned on the retina or the retina front, simultaneously combines the central vision framing that forms with the optical texture of eyes near the recess of eyes or on the recess by this vision therapy equipment.Except this vision treatment region, this optical visual therapy equipment also increases at least one vision and preferentially distinguishes, wherein the optical design in the preferential district of this vision be processed into the optical texture of eyes in conjunction with forming the relevant visual pattern that belongs to gaze-direction with the preferential district of this vision, and other optical aberration and/or the amount that defocuses are controlled or reduce.
In another embodiment of the present invention, the designated useful paracentral vision that provides in the preferential district of at least one vision of this vision therapy equipment, wherein the preferential district of this vision has and approximates the range that eye pupil projects this locational size of this device at least basically greatly, still preferably is selected as mating the size of wearer's visual object.This visual object can include but not limited to computer monitor, TV, page, standard letter paper, music score etc.
In another embodiment of the present invention, the designated useful vision that provides along selected line/band (representing " scanning " of gaze-direction scope) in the preferential district of at least one vision of described vision therapy equipment, wherein the preferential district of this vision depicts along this line/band portion or all strides across the band that this device extends, and the height that this vision is preferentially distinguished band is approximately equal to this locational size that eye pupil projects this device at least basically, and the optical design in the preferential district of this vision is treated to and combines formation with the optical texture of eyes and belong to along the visual pattern of the gaze-direction of this line/band the amount of controlling simultaneously or reducing other optical aberration and/or defocus.
In another embodiment of the present invention, the preferential district of at least one vision of this vision therapy equipment is specified in the useful vision that near-sighted some place provides, in the preferential district of wherein said vision at least one is selected as in the position in this vision therapy equipment conforming to the myopia point that is positioned at this device of eyes to the near-sighted object line, this vision dominant area has and is approximately equal to the range that eye pupil projects this locational size of this device at least simultaneously, but can be preferred the size into basic coupling wearer's near-sighted object.This near-sighted object can include but not limited to watch, personal digital assistant, mobile phone, page, standard letter paper, music score etc., optical design in the preferential district of this vision simultaneously is treated to and combines the visual pattern that forms by the preferential district of this vision with the optical texture of eyes, and control and/or the amount that reduces other optical aberration and/or defocus.
In another embodiment of the present invention, the preferential district of at least one vision of this vision therapy equipment is specified in the dead ahead useful vision that viewing distance provides to viewpoint place between the near point in the middle of passing of watching, wherein the band from the High eye point of this device to the myopia point extension of this device has been described in the preferential district of this vision in this vision therapy equipment, and the preferential district of this vision has and is approximately equal to the width that eye pupil is incident upon size on this position of this device at least basically, is coupling wearer's the centre or the size of near-sighted object but can be preferred.This centre and near-sighted object can include but not limited to watch, personal digital assistant, mobile phone, page, standard letter paper, computer monitor, display unit, music score etc.
As mentioned above, should be clear, in order to slow down or to stop the not positive development of Qu Guang, the central vision that provides and providing by the preferential good useful vision of distinguishing of selected vision, can construct multi-function device, this multi-function device comprises the combination in the preferential district of vision that is included in a difference configuration in the vision therapy equipment, to follow following vision treatment region.
Also should be clear from the above, this method can be applicable to by provide stimulation to postpone the development of hypermetropia to eyes, in order to postpone or stop the development of hypermetropia, reorientate (when eyes be in stare just before during view direction from axle outer visual object point) imaging surface than the back of feasible relevant with astigmatism at least two imaging surfaces of peripheral vision image is positioned on the retina or amphiblestroid back, and by the location (when eyes be in stare just before during view direction from axle on visual object point) the central vision image makes this image be near or the recess of the recess of eyes, the next central vision that provides to eyes simultaneously, and provide synchronously corresponding to one or more visions of the preferential direction of eye gaze and preferentially distinguish, preferentially distinguish for this vision, other optical aberration and/or defocus controlled or reduce to provide with the preferential direction of watching attentively along those or useful vision to eyes.
Limit claims of the present invention with detailed description of preferred embodiments and consideration with reference to the accompanying drawings, these and other objects of the present invention and advantage will be further clear.
Description of drawings
Accompanying drawing illustrates each side of the present invention and various embodiments of the present invention.These accompanying drawings are explained purpose of the present invention, advantage and principle with description.In the accompanying drawings:
Fig. 1 is eyes and is designed to slow down the figure of vision therapy equipment of the prior art of myopia progression by control filed curvature, show limited pupil size other optical aberration to the influence of visual image quality on institute's role;
Fig. 2 is the relative crooked curve chart of image field of imaging surface of the prior art combination of eyes shown in Fig. 1 and vision therapy equipment;
Fig. 3 is the relative crooked curve chart of image field of the imaging surface of the vision therapy equipment method of one embodiment of the present of invention and eyes;
Fig. 4 is the overview of an embodiment of optical visual therapy equipment of the present invention, the position that shows the position in the central optical zone that the preferential district of vision is provided and be used to slow down the filed curvature control beginning of myopia progression;
Fig. 5 is the crooked relatively curve chart of image field that is used for slowing down by the position that controlling packet contains the peripheral focus in the preferential district of the paracentral vision that does not contain spherical aberration effectively the contact lens as an example of myopia progression;
Fig. 6 is the longitudinal spherical aberration curve chart of the contact lens as an example of Fig. 5;
Fig. 7 is the design drawing of the contact lens as an example of Fig. 5, shows the thickness pattern of contact lens as an example and the format surface and the tear layer thickness of format surface and typical cornea;
Fig. 8 A-C has explained the origin that the periphery of centrifugal vision correcting device defocuses;
Fig. 8 A is positioned to the vision correcting device of dead ahead on the eyes of staring;
Fig. 8 B illustrates the vision correcting device of Fig. 8 A that is positioned on the same eyes, stares but direct one's eyes downward;
Fig. 8 C is the curve chart of filed curvature that the vision correcting device of the imaging surface of eyes and Fig. 8 A that closes about the recess set of balls and Fig. 8 B is shown;
Fig. 9 A-C is the design example of one embodiment of the present of invention;
Fig. 9 A is preceding design (front-on) layout of vision therapy equipment, and the vision that shows the optical center that comprises this vision therapy equipment is preferentially distinguished the layout of band;
Fig. 9 B be among Fig. 9 A as an example device along the crooked relatively curve chart of the image field of the meridian that comprises the vision treatment region (meridian);
Fig. 9 C be among Fig. 9 A as an example device along the crooked relatively curve chart of the meridianal image field that comprises the preferential district of vision.
Figure 10 is another design example of embodiments of the invention, shows the preceding layout of vision therapy equipment, and this layout has the High eye point and the near-sighted vision of putting that comprise this vision therapy equipment and preferentially distinguishes band.
Figure 11 A-C illustrates another design example of one embodiment of the present of invention;
Figure 11 A is the preceding layout of vision therapy equipment, shows the layout of the preferential area of vision of the myopia point that comprises this vision therapy equipment;
Figure 11 B be among Figure 11 A as an example device along the crooked relatively curve chart of the meridianal image field that comprises the vision treatment region;
Figure 11 C be among Figure 11 A as an example device along the crooked relatively curve chart of the meridianal image field that comprises the preferential district of vision;
Figure 12 A-C illustrates another design example of one embodiment of the present of invention;
Figure 12 A is the preceding layout of vision therapy equipment, shows the layout that has the preferential area of vision of relative positive light coke (power) at the myopia point place of this vision therapy equipment;
Figure 12 B be among Figure 12 A as an example device along the crooked relatively curve chart of the meridianal image field that comprises the vision treatment region; And
Figure 12 C be among Figure 12 A as an example device along the crooked relatively curve chart of the meridianal image field that comprises the preferential district of vision.
The specific embodiment
For with those central visions that need get well of describing in the top and on some other selected gaze-direction, also need the wearer of good vision, it is helpful and favourable that following vision therapy equipment is provided, this vision therapy equipment can be passed through as US7,025, the position of the 460 peripheral picture point of suitable processing of being instructed applies slows down ametropic stimulation, but, then reduce other optical aberration for those selected gaze-direction-be the vision dominant area.In addition, if this vision therapy equipment is centrifugal, it is helpful and favourable then not only having controlled or having reduced to pass other optical aberration of selected gaze-direction but also control or reduce to defocus.
Fig. 1 explained the present invention behind about controlling the ultimate principle of other optical aberration.In Fig. 1, use US7, the method for 025,460 instruction utilize eyeglass 20 treatments have the myopia tendency eyes 10 (that is, and these eyes be myopia or will develop myopia), make postponement or eliminate the myopia progression of these eyes.In this specific examples, effective negative that eyeglass 20 is designed to from the tight outside in the zone of the recess 25 of eyes 10 or periphery begins to realize image field to crooked (according to US7,025,460) (" recess " is the zone with the highest visual acuity of retina 50 and is used for key visual).This causes imaging surface 30, its central shaft picture point 40 focuses on the recess 25, the centre focus vision that makes it possible to produce, and simultaneously peripheral picture point 60,70,80 is positioned at the place ahead of peripheral retina 50, thereby reduces or eliminate the stimulation of eye growth and postpone or eliminate the development or the progress of myopia effectively.
The crooked relatively of image field that the example of Fig. 1 has been shown among Fig. 2 schemed.In the crooked relatively figure of image field, crooked retinal surface " is remapped " and is vertical line 200 on the anatomy.This remaps and keeps imaging surface and amphiblestroid wheelbase from (that is, be similar to be parallel to the distance that records on the front and back of light direction in the eye or forward-backward directions).Therefore, the negative-appearing image field bend is regarded on its length as the line of " recessed " on average left approx.As can be seen, for the design in the example of Fig. 2, all peripheral picture point 210,220,230-comprise the peripheral point (that is, other central point) that is close to recess-be positioned at the left side (that is, the place ahead) of retina 200, thereby provide minus image field crooked relatively.
Seldom degree of freedom in the optical design of the known vision correcting eyeglass of lens designers (promptly, usually only have two light refraction surface-front surfaces, a rear surface), when lens design is control filed curvature, its also control simultaneously, perhaps optimize other optical aberration (as coma, distortion and astigmatism) especially.For example, oblique scattered-light influence (being also referred to as the off-axis aberration of " radial scatter " type) is to produce two isolating clear focal lines (linefoci), rather than single focus point clearly (notices that the oblique astigmatism of aberration is different from the refraction astigmatism.The former relates to generation by the aberration that is upward through two focal lines that light that optical system propagates causes in axle foreign side.The latter relates to the generation of two focal lines in influencing the recess dioptric of ocular vision.In this article, unless otherwise noted, otherwise " astigmatism " is meant " tiltedly astigmatism " aberration).At US7, can see the astigmatism that exists as the result of control filed curvature in 025,460 among the crooked relatively figure of disclosed image field, it is contained in this by reference, as the part of this description.At US7, among the crooked relatively figure of 025,460 image field, show two focal lines, one is designated as " S ", and expression is (sagittal) focal line radially, and another is designated as " T ", tangential (tangential) focal line of expression.It is far away more that these two focal lines separate, and then amount of astigmatism is big more.For the peripheral vision direction, this astigmatism result and other optical aberration are relatively poor visions.Therefore this processing of filed curvature is also made inevitably potentially the visual pattern degradation-increase gradually on amount of periphery from other center to neighboring area far away.
The influence of other optical aberration is relevant with the pupil size of eyes.Continuation is for Fig. 1, (and therefore the projection entrance pupil 90 of eyes) has limited size because the pupil of eyes 100, so can see that anaclasis that each position on the eyeglass 20 can relate to more than one picture point (promptly, focus on) (in the visual optics term, the eyes that the layman is commonly referred to as " pupil " " secretly enclose " " entrance pupil " that is actually eyes, because it is to be produced by the opening in the iris, the image of the physical pupil that any other Optical devices between iris and observer of being seen by the front portion of eyes (that is cornea) and observer amplify).For example, the light that propagates into center image field point 40 can pass on the eyeglass 20 the central field optical region corresponding to the projection entrance pupil 90 (" projection entrance pupil " is size and the edge contour that projects to the pupil on the eyeglass forward) of eyes.Therefore, any change of eyeglass optical design all will have influence on light and how focus on the recess zone in zone 90.
Yet, can see that propagate into the light that is labeled as 60 peripheral picture point and will pass optical region 110 on the eyeglass 20, optical region 110 parts are in the periphery of central field optical region 90, part overlaps.These two optical regions 90 and overlapping meaning of 110 in order to realize that the relative crooked change of image field is to be positioned at peripheral picture point 60 in more the place ahead and any trial of revising the optical design of eyeglass 20 all will be introduced other optical aberration of some form to the central image point at 40 places of retina 50.Similarly, peripheral optical region 110 with 120 overlappingly mean that relative crooked any trial of controlling image field for peripheral picture point 70 is positioned at more the place ahead of retina 50 all will introduce a certain amount of other optical aberration to the peripheral picture point at 60 places.
Along with the image field angle increase (being that picture point 60,70,80 increases gradually) of peripheral picture point, the lap of the optical region between peripheral picture point and the central image point 40 on eyeglass 20 reduces.Have peripheral picture point 70, its image field angle is enough big, makes that relative peripheral image field optical region 120 does not have effective optical superposition with center image field optical region 90 on eyeglass 20.Do not take place when this projection entrance pupil in (center image field and peripheral image field) two image field angles is obviously overlapping.
Not demote to the picture quality of the selected visual direction of neighboring area far away in order making, need to alleviate or remove control the filed curvature of these selected visual directions from the other center of eyeglass.This can carry out at the selected optical region place in the vision therapy equipment.This method forms basis of the present invention.
Therefore, one embodiment of the present of invention relate to a kind of like this method, this method does not have obviously at projection entrance pupil and center (axle) image field, and eclipsed minimum peripheral image field angle place begins to introduce the relative crooked or peripheral optical design that focuses on of the image field that provides suitable, be used for postponing or eliminating myopia progression (that is vision treatment region).This minimum peripheral image field angle will be called as " beginning to design the image field angle ".Shown in Fig. 3 to the crooked relatively influence that is produced of image field.As can be seen, the image field of center image field (for example being positioned at the near peripheral picture point 310 on the retina 300) is crooked relatively by not attempting controlling (therefore remains on its " tradition " state in the crooked relatively figure of image field of Fig. 3; And according to other lens design require can be minus, positive or neutral-in Fig. 3, only be depicted as by way of example neutral-promptly, the close retina of the imaging surface this zone in or on retina).Corresponding to no longer introducing the relative crooked control of image field (providing) by the vision treatment region with obviously eclipsed described " beginning to design peripheral picture point " 320 places that begin to design the image field angle of center image field optical region along the described projection entrance pupil size that begins to design the image field angle.Than this begin to design peripheral picture point 320 more peripheral all images points focus on the retina 300 basically or its place ahead to remove of the stimulation of amphiblestroid those peripheral image field zones to eye growth.
For the design about eyeglass 400 shown in Fig. 4, in this design, its distance 410 (it is approximately the size of projection entrance pupil at least) that changes in the center image field optical region 420 tight outsides begins to introduce the bending relatively of suitable image field.In center image field optical region 420, the crooked relatively or periphery of not using image field basically focuses on design, thereby avoids introducing other optical aberration.Therefore these center image field optical region 420 representatives are for the useful improvement visual performance district of wearer of vision that will be good in this district's domestic demand.Therefore, the vision of a kind of form of these center image field optical region 420 representatives is preferentially distinguished.In 420 outsides, central optical zone, beginning to design outside the peripheral point 410 simultaneously, (the vision treatment region 430 of device 400) comprises control crooked relatively to image field or that periphery focuses on.Like this, we will reduce or eliminate the stimulation to eye growth, simultaneously to also not introducing additional other optical aberration through being usually used in key apart from the center image field optical region of watching.
Determine the definite size and the position of this center image field optical region by a plurality of parameters of the size of the refractive power of the refractive status that comprises eyes, eyeglass, vertex distance (that is the distance from the eyeglass to eyes) and eyes input pupil and edge or profile.Therefore, for optimal design, should set up above parameter at each wearer.Yet, when designing, can use acceptable " public " meansigma methods at these parameters, to reach spendable " typical case " distance center image field optical region size for the mass production eyeglass.
Be noted that and do not require in the projection that begins to design center, image field angle place image field optical region and entrance pupil there be not overlapping (being that lap is zero).Only need be significantly not overlapping at that.Because the existence of the known Stiles-Crawford effect of expert of visual optics, the light that the light that more close pupil edge passes passes than more close pupil center effective contribution of visual pattern is littler to effective contribution of visual pattern.On the physiology, to compare with the light that passes pupil near pupil center, the light that passes pupil near pupil edge causes less visual signal to visual cortex.Therefore, with fuzzy the comparing that the light that passes pupil center causes, bluring that the light that close pupil edge passes pupil causes more is difficult for discovering concerning eyes.Therefore, only allow that light near pupil edge passes and unconspicuous concerning the contribution of visual pattern for the wearer, visually be acceptable in the center of center image field zone with a small amount of overlapping of projection that begins to design image field angle place entrance pupil, and the center that allows more close eyeglass begins control (by the vision treatment region) that periphery is focused on, thereby the more large-area vision treatment region that the stimulation that is used to slow down myopia progression is contributed is provided.
In some cases, can preferably provide than approximate corresponding to the bigger center image field optical region of the center image field optical region of aforesaid eyes projection entrance pupil.For the bigger visual field that the existence of other optical aberration can not make visual pattern that unacceptable degradation takes place, the wearer may need good vision-promptly, vision dominant area.Example in the time of may needing bigger vision dominant area be included in monitor (for example, computer screen, radar display unit) go up the wearer of work, read the musician of music score, the artist of painting on the easel, the architect that on drawing board, works etc.In using for these each, just as understood by those skilled in the art, the trigonometry of the size (for example, U.S.'s letter size, computer screen size, canvas size etc.) of vertex distance, entrance pupil size, operating distance and working surface that can be by considering Optical devices is calculated the required size in (corresponding to desirable other center image field optical region on the eyeglass) the preferential district of vision.
Therefore, according to wearer's vision needs, limit the preferential district of paracentral vision, begin at it outside that filed curvature controls describedly begin to design that optical region can be approximately equal to or greater than the projection entrance pupil of eyes.
Although the eyeglass that is provided in the example shown in Fig. 1 to Fig. 4 is the form that is similar to eyeglass, but those skilled in the art can know at once that now the above can be applied to other Optical devices equally, includes but not limited to contact lens, corneal inlay and cornea veneer, anterior chamber intraocular lens and intraocular lens now.It can also be applied to treat the design and the shaping of the anterior corneal surface of usefulness, as photorefractive keratectomy (PRK), laser in-situ keratomileusis (LASIK) and other refractive surgery treatment etc.
According to above-mentioned explanation of the present invention, those skilled in the art is also at once clear, central optical zone can " no matter " (promptly, do not revise or do not carry out the crooked relatively control of image field) or in this zone, can comprise additional optics design feature, as comprise rectification to ocular aberrations on center, the dead ahead view direction.According to the disclosure, other supplementary features relevant with central optical zone also are fine and are conspicuous to optical designers.
According to above-mentioned method for designing, lens designers should know how to realize particular design by the lens design technology known to use those skilled in the art now.Yet Fig. 5 shows in order to treat-the relative buckling curve figure of image field of the contact lens of 3.00D myope design in illustrative mode.In the design of this contact lens, by relevant with astigmatism two focal lines 520 in the preferential district 510 of vision and 530 near as can be seen, astigmaticly in this district significantly reduced.Outside the preferential district 510 of vision, 540 beginnings of vision treatment region also adopt filed curvature control to reduce the development of myopia, and this can find out by more forward focal line 520 in scattered-light two focal lines 520 and 530 is navigated to amphiblestroid more the place ahead.By two focal lines 520 in the vision treatment region 540 and 530 separate as can be seen, secondary astigmatic effect has been introduced in this bending control.It can also be seen that, in the image field optical region of center (promptly, in the preferential district 510 of vision) in fact eliminated spherical aberration, bending (that is the focusing of peripheral focus point) is processed to produce the stimulation of postponing myopia progression relatively for the image field outside the image field optical region of center simultaneously.
Fig. 6 is illustrated in the longitudinal spherical aberration of this contact lens in the pupil region, and it is much smaller than 100 nanometers-promptly, in fact eliminated spherical aberration from this eyeglass.Therefore, this contact lens can not introduced significant additional delivery surface aberration to eyes, and provides vision on the good central shaft to eyes, also is provided for alleviating the therapeutic effect of myopia progression simultaneously.
This example contact lens possible particular design shown in Fig. 7, this design can use 8 order polynomial equatioies to describe, and its coefficient is c 4=8.2 * 10 -4, c 5=-1.8 * 10 -3, c 6=1.4 * 10 -3, c 7=04.0 * 10 -4, c 8=3.9 * 10 -5, in addition, the center radius (r in the basic conic section cross section of front surface 0) be 8.782mm, conic constant is-0.774, the center radius (r in the conic section cross section of rear surface 0) be 8.28mm, conic constant is-0.16, center thickness is 0.12mm.Yet, the technical staff understands in lens design, by using definition of other lens design and parameter can realize addressing the optical results that is equal to, these definition and parameter include but not limited to the following or its various combinations: sphere, conic section cross section, batten, Bezier, Fourier comprehensively, Zernike multinomial, radial height descriptor, the radius of angle (R-θ) descriptor and the direct look-up table of surface point.
In with the lower part, expanded by the defined principle of design that is used to slow down myopia progression and comprises the vision therapy equipment in the preferential district of paracentral vision of said method, to illustrate how this method for designing can be used for adopting filed curvature control to provide the vision of various configurations preferentially to distinguish to slow down or to eliminate in the vision therapy equipment of myopia progression.In part subsequently, continue to provide the method for designing of more complicated vision therapy equipment, some the regional parts omitted on device of this method shade statuette field bend control expansion (promptly, the vision treatment region) time, the filed curvature control that keeps main is suitable for alleviating of myopia or eliminates-cause stimulation (according to US7,025,460), reduce relevant in addition with filed curvature control, particularly at other center to the bad visual performance of periphery far away, thereby the benefit of the vision that provides in the preferential district of vision at wearer's some hope.Specifically, method and apparatus of the present invention is effective alleviating or eliminating on the visual impact of other optical aberration not only, and, on alleviating or eliminate the visual impact that the periphery that exists in the centrifugal device defocuses, also be effective as the result of control filed curvature.
Explain the influence that periphery defocuses now.As mentioned above, treat myopia by the control filed curvature or the position of handling peripheral picture point, the vision therapy equipment may cause undesirable other optical aberration on direction of principal axis, and this aberration may influence the vision on those off-axis visual directions unfriendly.This effect had both influenced center type vision correcting/therapy equipment and method (promptly, keep relative aligning and co-axial those devices with eyes during use, as traditional contact lens, intraocular lens, corneal inlay and veneer, anterior chamber intraocular lens and cornea refractive surgery method) also influence centrifugal vision correcting/therapy equipment and method (promptly, its position and orientation are with those devices of the gaze-direction change of eyes, as conversion contact lens and eyeglass).
In addition, another effect that is used to control filed curvature or peripheral focus position and may influences the vision on the off-axis visual direction unfriendly is that periphery defocuses.This effect mainly influences centrifugal vision correcting/therapy equipment and method.This effect is illustrated as follows; With the eyeglass as one type centrifugal vision correcting device is example.
Because eyeglass is positioned at a certain distance of leaving eye pupil, so eyeglass is suitable for controlling filed curvature.This distance make eyeglass filed curvature design and control simpler and more effective.Yet an attribute of eyeglass (the inherent attribute of all centrifugal vision correcting devices) is that it does not keep aiming at the glasses sight line (that is, coaxial) during use.(watch different piece in its visual world attentively by rotating eyes) when wearer's gaze-direction changes, each eye is watched by the difference on the eyeglass (point on the central shaft beyond the point).In other words, eyes are watched by the point of the different optical on the eyeglass according to its gaze-direction.
When eyeglasses wearer is faced the place ahead and watched a distant place (visual direction of frequent employing), each eye is watched by the point that can be described as " High eye point " sometimes.Usually High eye point is positioned at the optical center (point on the central shaft) of eyeglass.Yet when the wearer read, eyes were tending towards directed downwards and assemble (that is, close towards the nose direction slightly).On this visual direction, each eye is watched by the point that is positioned at and more close nose (that is, towards nose) more downward than High eye point.This point is called as " near-sighted point " sometimes.This myopia point amount more downward than High eye point or more close nose depends on wearer's anatomical features (for example, interpupillary distance; It is the distance between two the pupil center), reading distance (promptly, distance from the reading material surface to glasses) and the design of vertex distance (that is the distance from the eyeglass to eyes) and eyeglass and known a plurality of other parameters of technical staff of distributing the field.
Other the time, for example when driving, the wearer may be along horizon scan line (for example, check at the crossing on the cross-street traffic).In the case, each eye can be seen any of a plurality of points of being arranged on the horizontal line, and these points can pass the High eye point of eyeglass.
The common point of above situation is on the direction beyond visual object that the wearer pays close attention to is positioned at dead ahead the time, and wearer's eyes are not by on the eyeglass being that the point or the zone of putting on the central shaft of eyeglass watched.If the wearer often need specific gaze-direction and the vision on this gaze-direction must be good (for example, under the situation of myopia point, the wearer can be the secretarial work person who often needs reading), then can consider zone relevant with this key gaze-direction on the eyeglass is preferentially distinguished as this wearer's vision.
When with lens design for control filed curvature (that is, controlling the position of peripheral picture point) when slowing down myopia progression, the refractive power of (that is, corresponding to different acting staring vision directions) aligns manyly this eyeglass mutually at the some place that departs from its optical center.Although this effect with three dimensional constitution occur-promptly, arbitrary selected meridian departs from optical center and advances on the eyeglass, can consider to prove absolutely this notion by two-dimensional approach as shown in Fig. 8 A to Fig. 8 C.
In Fig. 8 A, stare the eyes 805 wearing spectacles eyeglasses 810 of dead ahead.On this gaze-direction, eyes 805 are by also being that the optical center 815 and the peripheral region 816 thereof of the High eye point of eyeglass 810 watched.In Fig. 8 B, the same eyes 805 of wearing same eyeglass 810 are stared (for example, being used for reading) now downwards.On this gaze-direction, eyes 805 are watched by more peripheral optics point 820 on the eyeglass 810 and peripheral region 821 thereof now.
In the case, because eyeglass 810 has been designed to comprise filed curvature control, so the focal power that its dead ahead makes progress (by optical center 815) is treated to the recess 825 on the retina 826 that makes focus 850 be positioned at eyes 805, thereby vision on the central shaft that provides, and the while is with respect to the focal power at optical center place, its peripheral focal power (for example, by peripheral optics point 820) departs from optical center 815 more, and its positive quantity increases more.This is shown as the filed curvature curve chart among Fig. 8 C.In Fig. 8 C, show the crooked relatively curve of the image field 830 of representing eyeglass 810.Fig. 8 C also illustrates when eyes 805 and stares " the recess ball " 835 that forwards the recess 825 of eyes 805 when staring to downwards from dead ahead.This ball has been described the track of all positions that recess when eyes 805 rotate (in Fig. 8 A to Fig. 8 C, staring for dead ahead is 825, for periphery/to stare be 827) can adopt downwards.This recess ball 835 is the center with the center of rotation 840 of eyes, although it is not fixed point and changes with eyes that it is considered to usually that the approximate axle that is positioned at eyes is gone up and at the about 16mm in eye's cornea 828 back on physiology.Because eyeglass 810 has been designed to control filed curvature slowing down myopia progression, thus shown in the filed curvature curve chart 830 among Fig. 8 C, off-axis position more, its focal power is more for just.Focus 850 is positioned on the recess when dead ahead is stared, thereby central vision clearly is provided.Yet when periphery was stared, because more positive refractive power, peripheral focus 855 was located opposite from the place ahead (that is, from the close forward cornea of retina) of recess 827.The difference of the focal position 855 corresponding with it, the position of recess 827 has been introduced defocus amount 860 during periphery is stared, and this defocus amount causes fuzzy recess vision when periphery is stared.
Should be noted that, according to eyeglass with respect to the definite design of eyes and position, for the amount of slowing down the filed curvature control that myopia progression adopts and the dissection dimension (some of them illustrate in front) of eyes, defocus on every side can recess the place ahead (as the situation in this example) also can be at the rear of recess.
In practice, for centrifugal sighting device, periphery defocuses with other optical aberration (as what explained in the part early) and exists simultaneously basically on peripheral gaze-direction.This two kinds of combination of effects and addition make the visual image quality degradation on the peripheral gaze-direction.Increase to these two effects of periphery far away through other central area from intermediary optical center.
In the general use of centrifugal sighting device, defocus and not paid close attention to the bonded periphery of other optical aberration, because the most frequent gaze-direction of wearer is dead ahead (center) or near dead ahead (other center) normally, defocusing on such gaze-direction is zero to very low.Yet, be engaged in and need particularly can be considered as the point in the preferential district of vision for some by peripheral optics point, the wearer of the visual task of watching for a long time, this defocuses is undesirable.
May provide the good relatively vision of usefulness in some cases in other central area in addition.For example, the wearer may have good relatively useful peripheral vision (for example, during driving, using its peripheral vision to detect the vehicle that sails into from cross-street at the traffic intersection place) along horizontal line.In this case, the required preferential district of vision of wearer may be by the described optical region of being with that is positioned on the horizontal line.
Be noted that since the density of known optical receiving set at the center (recess) zone the most concentrated, best visual acuity is provided, and reduces towards amphiblestroid periphery, be relative tolerance so relate to the good vision of peripheral vision.Therefore, Zhou Bian visual acuity is good unlike the acuity of recess vision.Yet if other optical aberration is enough big with the amount that defocuses, vision particularly contrast sensitivity (expert of visual science is known in a kind of tolerance that can how well to distinguish to eyes the trickle grade of white through Lycoperdon polymorphum Vitt from black) may be undermined.Therefore, can carry out the improvement of peripheral vision by the order of severity that reduces other optical aberration existence.
In already mentioned another example, the wearer may be engaged in long reading with fixed distance, and eyes are assembled and may be stared downwards during this period.Under these circumstances, can comprising and describe the required vision of wearer around the optical region of the myopia point of this device and preferentially distinguish with the vision therapy equipment.
In another example, wearer (for example, assembly line inspector) may need from afar visual object to the visual scanning continually of visual object nearby.In this case, the required preferential district of vision of wearer can be with the zone that connects and comprise and center on the band description that High eye point on this device and myopia are put.
We will continue to illustrate by way of example the method for designing of more complicated vision therapy equipment now, this method is by being attached to the needs that solve above-mentioned wearer in the vision therapy equipment with the preferential district of suitable vision, and wherein this vision therapy equipment adopts the vision treatment region to control filed curvature to slow down the development of myopia.Common theme is control, reduce or the preferential district of minimal visual in other optical aberration and/or periphery defocus, make vision by the preferential district of vision be enhanced and be useful the wearer.Alleviate or removes filed curvature and control and realize other optical aberration and/or peripheral reducing or eliminating of defocusing by local in the preferential district of selected vision.
As illustrated in the following example,, a small amount of minimizing of filed curvature control expansion will only be caused as the result who preferentially distinguishes control in particular visual or reduce other optical aberration and/or defocus.Therefore, although comprehensively total filed curvature control may reduce slightly, therefore comprehensively and myopia is slowed down stimulation and may be reduced (rather than elimination) slightly, but will provide the better and more favourable result that compares (just near-sighted effectiveness and the definition that slows down with vision) for the wearer in the benefit of the clear vision of the vision point of hope (for example, being used for reading).
Illustrated among Fig. 9 A to Fig. 9 C at horizontal line (for example, during driving) and need have the wearer's of good relatively useful peripheral vision method for designing of the present invention along gaze-direction.Fig. 9 A is the front view of optical arrangement of the vision therapy equipment of this method.Fig. 9 B is the relative crooked curve chart of image field with Fig. 9 C.By according to US7,025,460 instruction is provided for slowing down or eliminates in the vision therapy equipment 905 that the crooked relatively vision treatment region 910 of suitable image field of myopia progression forms mainly, and method of the present invention is introduced the band that also combines the preferential district 915 of vision.With the optical center 920 that comprises this device and local or fully to the 925 progressive preferential districts 915 of the visions of describing the design's method that bring, edge of the optical facilities of this vision therapy equipment on one or two direction.The width 930 of this band in the preferential district 915 of vision be approximately at least according to the wearer's of the identical principle of last partial interpretation the projection size of entrance pupil on this device.
The method according to this invention is in the preferential district 915 of vision, by slowing down or removing the influence of the control of filed curvature being controlled, reduced or minimizes other optical aberration.Replacement is to the control of filed curvature the processing of peripheral image point locations (perhaps to), according to its seriousness or wearer's vision needs, uses the optical design degree of freedom of device in the preferential district of vision to optimize any other optical aberration and/or defocus.It is crooked relatively that Fig. 9 B illustrates the image field that records along the vision treatment region 910 interior meridians " A " of the vision therapy equipment 905 of Fig. 9 A.Find out that from the curve chart of Fig. 9 B is clear vision therapy equipment 910 provides according to US7, the crooked control in visual field that is used to postpone or eliminate myopia progression of 025,640 instruction.Can also see from Fig. 9 B that vision treatment region 910 bears and comprise scattered-light a certain amount of other optical aberration.Among Fig. 9 B tangential 940 and radially 945 focal lines are separated, and there is a large amount of astigmatism in expression.Therefore, the peripheral vision in vision treatment region 910 is bad.Contrast, Fig. 9 C illustrates at the same vision therapy equipment 905 of Fig. 9 A crooked relatively along the image field that meridian " B " records along the band in the preferential district 915 of vision.In this specific examples design, one of other optical aberration, promptly astigmatism has been minimized to provide to the wearer along the improvement vision in the preferential district of this vision.This can know in Fig. 9 C and find out that wherein scattered-light tangential 950 and radially 955 focal lines are in close proximity to each other, and showing along the preferential district of this vision does not have astigmatism.
As can be seen, scattered-light focal line 950 and 955 is positioned at amphiblestroid back along meridian B, and expression relative hypermetropia (that is minus relatively focal power) defocuses.This a spot of negative defocus can be easily a small amount of adjusting (that is proximity focused) by the wearer aspect compensate.
This method for designing a kind of providing will be provided now slow down myopia progression and along to having the vision therapy equipment of good two kinds of benefits of useful vision on the important gaze-direction of wearer like this.Owing to compare with the large tracts of land of vision treatment region 910, it is little that vision is preferentially distinguished 915 area, so only reduced to be used to slow down the providing of stimulation of myopia progression in this method for designing of the present invention slightly not obviously.
The technical staff in lens design field can be appreciated that, instruction according to the invention described above, optics " joint " district 960 that joins between vision treatment region 910 and the preferential district 915 of vision needs slightly modified in filed curvature control, to provide from the level and smooth optical transition (for example, no vision " is jumped over ") of vision treatment region 910 to the controlled filed curvature in the preferential district 915 of vision.
Can select the length 935 in the preferential district 915 of vision according to wearer's vision needs.For example, need be the wearer who is used to drive for main vision, it is useful that the length of the band that another side extends is provided from one side of the optical facilities of vision therapy equipment to.Such band is made fairly simple additional benefit also because it shows as mirror image (laterally) symmetry and have.Be used to slow down the wearer of the stimulation of myopia progression for the expansion of preferred maximization vision treatment region with maximization, can select more short-sighted feel preferentially to distinguish the length of band (crucial gaze-direction only is provided).Can asymmetricly arrange this band, make an end of this band than the other end further from optical center 920.For the wearer of the most frequent visual task two convergences of needs (that is, each eye inwardly rotates towards nose), for example when being positioned at eye level, reading material (for example, test/medical monitoring equipment on the top of the shelf is installed), and useful during this possibility.
According to above-mentioned also should be at once clear, the band in the preferential district of the vision of the example among Fig. 9 A not necessarily will flatly be arranged.Example when Figure 10 provides on the oblique meridian that the band when vision dominant area 1015 is configured to be positioned at vision therapy equipment 1005.In this example, vision dominant area 1015 bands comprise optical center 1020 (it also is the High eye point of vision therapy equipment 1005) and myopia point 1025.This design is for needing continually visual object from afar to be good to the wearer (for example, assembly line inspector) that visual object nearby carries out visual scanning.The viewpoint of the gaze-direction that this design remains on eyes eyes when (comprise eyes assemble and stare downwards) is mobile to nearby via middle viewing distance from afar is in the preferential district 1015 of vision.Should be appreciated that for the wearer of this example, the layout in the preferential district of the vision of this vision therapy equipment will be that proximate mirror is symmetric for right and left eyes.Figure 10 illustrates the front view (being seen) of the vision therapy equipment of wearer's right eye when wearer's face is watched.
Ophthalmology vision correcting Design of device and distribute the technical staff in field to recognize and therefore the present invention consider that this device will need to correct position and the orientation on eyes.For the vision therapy equipment of eyeglass form, provide correct wearing by the spectacle-frame of setting the lens device correct orientation.For contact lens and other similar device, the design feature that is suitable for this device correct orientation is that the practitioner of ophthalmology vision correcting device is known, and these design features comprise prism ballast (prism ballasting), dynamically thin district and " attenuating (slab-off) " design.The manufacturing of this asymmetric design device also is known in those skilled in the art, comprises the use of computer-controlled multiple spindle lathe and grinder.Under the situation of implantable device, for example corneal inlay and veneer, anterior chamber intraocular lens and intraocular lens and refractive surgery method, during implanting auxiliary they correct orientation alignment device (for example, be used for convenient and the aligned visible alignment mark of specific apparatus, window etc.) or the designs fix device (for example, the haptics member of the loading spring in the artificial intraocular lenses) that is used to keep this device to be orientated all be to use these Design of device persons and practitioner known.
In vision treatment region 1010 along meridian " A " with in the preferential district 1015 of vision along the relative bending of image field of this design example of meridian " B " can be respectively similar with shown in Fig. 9 b and Fig. 9 c.For the previous design example that provides above, the entrance pupil that vision is preferentially distinguished the approximate at least eyes of 1015 width projects to the size on the optical surface of vision therapy equipment, but can be bigger and select according to wearer's vision needs.
The potential defect of above-mentioned example of band that the preferential district of vision is configured to stride across the optical surface of vision therapy equipment is its gross area that has reduced the vision treatment region with respect to absolute demand biglyyer.In addition, as lens design the technical staff understood, the optical design of band may introduce undesirable optical aberration in the optical junction district.For the wearer who mainly on single gaze-direction, needs the preferential district of vision the gaze-direction before just, can only, selected gaze-direction minimize this potential defect by restriction for providing the preferential district of vision.For example, need be the wearer who utilizes the gaze-direction of the myopia point pass the vision therapy equipment to read for main vision, method of the present invention is configured to only be positioned at the myopia point upward and on every side with the preferential district of vision.By doing like this, compare with the previous design example of the band configuration of using the preferential district of vision, kept more substantial total filed curvature control (though lens design and machining complexity are bigger).
Figure 11 A to Figure 11 C illustrates the vision therapy equipment 1105 that is applicable to this example.In Figure 11 A, show the front view of the optical surface of the vision therapy equipment 1105 that is used for wearer's right eye.Vision therapy equipment 1105 mainly comprises according to US7,025,460 instruction provide suitable image field crooked relatively to slow down or to eliminate the vision treatment region 1110 of myopia progression.The zone in the preferential district 1115 of vision is introduced and comprised to this method of the present invention, and vision is preferentially distinguished 1115 and comprised myopia point 1125.Although the zone in the preferential district 1115 of vision can be Any shape (for example, circle, ellipse, rectangle etc.), but the minimum dimension 1130 in the preferential district 1115 of this vision be approximately at least according to a preceding part in wearer's the size of the projection of entrance pupil on this device of the same principle explained.
The method according to this invention is in the preferential district 1115 of vision, by slowing down or removing the influence of the control of filed curvature being controlled, reduced or minimizes other optical aberration.Replace control filed curvature (perhaps handling the position of peripheral picture point),, use the optical design degree of freedom of this device in the preferential district of vision to optimize that periphery defocuses or any other optical aberration according to its seriousness and wearer's vision needs.It is crooked relatively that Figure 11 B illustrates the image field that records along the vision treatment region 1110 interior meridians " A " of the vision therapy equipment 1105 of Figure 11 A.Find out that from the curve chart of Figure 11 B is clear vision treatment region 1110 provides according to US7, the filed curvature control that is used to postpone or eliminate myopia progression of 025,640 instruction.Can see that from Figure 11 B vision treatment region 1110 not only bears and comprises scattered-light a certain amount of other optical aberration but also comprise that periphery defocuses.Among Fig. 9 B tangential 1140 and radially 1145 focal lines are separated, and there is a large amount of astigmatism in expression.And in addition, tangential 1140 and radially 1145 focal lines are positioned at more the place ahead of retina 1147, and expression exists a certain amount of periphery to defocus.Defocus differently with negative (hypermetropia), just (myopia) defocuses and can not compensate by regulating.Therefore, the peripheral vision in the vision treatment region 1110 is bad.Contrast, Figure 11 C illustrates at the same vision therapy equipment 1105 of Figure 11 A and preferentially distinguishes the image field bending relatively that 1115 zones record along meridian " B " along vision.In the design of this specific examples, the periphery by myopia point 1125 defocuses and is minimized so that the improvement vision of this vision in preferentially distinguishing to be provided to the wearer.This can know in Figure 11 C and find out, although wherein be between tangential 1150 and radially 1155 focal lines some distances still arranged at myopia point 1125, there is a spot of astigmatism in expression, (promptly one in front but be arranged in to these two focal line approximately equals around the retina 1147, one is in the back), show that the periphery of putting 1125 places in myopia defocuses significantly to be reduced and effectively compacting.
Can also see that from Figure 11 C on the either side of myopia point 1125, scattered-light two focal lines 1150 and 1155 are positioned at more the place ahead of retina 1147 once more, producing stimulates to slow down the development of myopia.
This method for designing provides generation now slows down myopia progression and along the vision therapy equipment to the good useful vision two-fold advantage of the important gaze-direction of wearer.In addition, this design example provides compromise and the invasion littler to vision treatment region 1110, thus providing of stimulating of maximization to slow down myopia progression.
In above-mentioned example, the design in the preferential district of vision optimised so that in other optical aberration (for example, astigmatism) one or periphery defocus and minimize.In this method of the present invention, can also use by the part and slow down or remove or control design freedom that filed curvature utilizes to handle other optical design parameter.For example, replace minimizing or remove periphery and defocus, can be with defocusing design and being controlled to be specific value by the preferential district of vision.
In scientific literature, point out, can slow down myopia progression by adopting down antidote.Stated also that in the scientific publication thing myopia progression may be relevant with the adjusting during closely watching.Adjusting is that eyes change (increase) its focal power and think that visual object nearby provides the process of clear focusing between read period.Although in part early, discussed and the relevant shortcoming of following rectification, during near work, reduced to be good to slow down myopia progression as additional stimulation to the requirement of regulating.Therefore, comprise the myopia point a certain amount of positive light coke is included in the application in the preferential district of vision for the preferential district of vision, it may be favourable.Like this, by the adjusting requirement during reducing closely to watch, reduce or the benefit eliminated the stimulation of myopia progression can further strengthen.
This examples of applications shown in Figure 12 A to Figure 12 C, wherein additional positive light coke (introducing myopic defocus) are introduced in the preferential district of vision that comprises the myopia point.
The front view of the optical surface of the vision therapy equipment 1205 that is used for wearer's left eye has been shown in Figure 12 a.Vision therapy equipment 1205 mainly comprises according to US7,025,460 instruction provide suitable image field crooked relatively to slow down or to eliminate the vision treatment region 1210 of myopia progression.The zone in the preferential district 1215 of vision is introduced and comprised to this method of the present invention, and this zone comprises myopia point 1225.Although the zone in the preferential district 1215 of vision can be an Any shape, the minimum dimension 1230 in the preferential district 1215 of this vision is approximately the size of wearer's the projection of entrance pupil on this device at least.
The method according to this invention, in the preferential district 1215 of vision, the control periphery defocuses so that the relative positive light coke (defocusing) up to pact+4.50D to be provided.It is crooked relatively that Figure 12 B illustrates the image field that records along the vision treatment region 1210 interior meridians " A " of the vision therapy equipment 1205 of Figure 12 A.Find out that from the curve chart of Figure 12 B is clear vision treatment region 1210 provides according to US7, the filed curvature control that is used to postpone or eliminate myopia progression of 025,640 instruction.Figure 12 C illustrates the relative filed curvature that records along meridian " B " along the preferential district 1215 of the vision of the same vision therapy equipment 1205 of Figure 12 A.In the design of this specific examples, will put 1225 periphery and defocus the relative positive light coke that is controlled to be up to+4.50D by myopia.This from Figure 12 C as can be seen, wherein in the zone of the myopia point 1225 in the preferential district 1215 of vision, " optimum focusing " 1253 that is equal to (being also referred to as " least confusion (confusion) ring " that limited by the dioptric meansigma methods between scattered-light tangential 1250 and radially 1255 focal lines) is positioned at more the place ahead of retina 1247, and more substantial positive light coke is provided on hand.Should reduce the requirement to regulating during near work of wearer aspect by additional near optical power.
This method for designing provides generation now slows down myopia progression and along the vision therapy equipment to the good useful vision two-fold advantage of the important gaze-direction of wearer.In addition, this design example provides and has reduced the additional benefit that the adjusting during the near work requires, and this can reduce the stimulation to myopia progression.
In above-mentioned example, used special surface definition technology (for example, conic section cross section and multinomial) to illustrate how to realize method for designing of the present invention.Yet, technical staff in lens design will understand, by using definition of other lens design and parameter can realize the optical results that is equal to, these definition and parameter include but not limited to the following or its various combinations: sphere, conic section cross section, batten, Bezier, Fourier comprehensively, Zernike multinomial, radial height descriptor, the radius of angle (R-θ) descriptor and the direct look-up table of surface point.
Along with the potential introducing (for example, wavefront correction system and " adaptability optics " system) of the active optics device with real-time correction of refractive errors and vision aberration potentiality, expection can also be attached to method for designing of the present invention in those devices.In addition, used the control of some other optical aberration and the control that periphery is focused on.
Those skilled in the art can imagine and many modifications of the present invention, variation and other embodiment that they belong to the present invention, and have the benefit of the instruction that provides in the above explanation.Therefore, should be appreciated that the present invention is not limited to disclosed specific embodiment and various modification and other embodiment and also wishes to comprise within the scope of the appended claims.Although adopt particular term at this, they just are used for general descriptive meaning, rather than are used for restrictive purpose.

Claims (22)

1. one kind is used to slow down the method that ametropia develops, and this method may further comprise the steps:
The optical visual therapy equipment that comprises vision treatment region and the preferential district of at least one vision is provided;
Wherein dispose described vision treatment region with the first predetermined optical design,
Described first optical design is selected to realize to the control of the outer focus of periphery axle with respect to amphiblestroid front and back position;
The described control of the outer focal position of periphery axle is produced at least one chastening basically stimulation influencing ametropic development, and the anteposition Position Control that simultaneously axle at center is gone up focus basically is near retina and an epigraph clearly is provided basically simultaneously; And
Wherein disposing described vision with the second predetermined optical design preferentially distinguishes;
Described second optical design is selected at least one gaze-direction control is selected from the situation that is defocused the group of forming with other optical aberration by periphery.
2. method according to claim 1 is characterized in that, for revealing scattered-light vision therapy equipment with the eyes associative list, the step of the front and back position of the outer focus of control periphery axle is further comprising the steps of:
The peripheral focal line that control is produced by astigmatism is with respect to amphiblestroid front and back position.
3. method according to claim 2 is characterized in that, the step of front and back position of controlling peripheral focal line is further comprising the steps of:
To orientate as towards peripheral retina than the first peripheral focal line of the more close eyes cornea of the second peripheral focal line and become a distance with the eyes cornea, described distance is less than or equal to the distance from the cornea to the peripheral retina approx.
4. method according to claim 3 is characterized in that, the preferential district of at least one described vision is configured to comprise a zone of described vision therapy equipment, and described zone is selected from the group of being put and being formed by optical center, High eye point, myopia.
5. method according to claim 3 is characterized in that, the preferential district of at least one described vision is configured to comprise High eye point and the near-sighted point in the described vision therapy equipment.
6. method according to claim 2 is characterized in that, the step of controlling the front and back position of peripheral focal line also comprises:
To orientate as towards peripheral retina further from the first peripheral focal line of eyes cornea than the second peripheral focal line and become a distance with the eyes cornea, described distance is approx more than or equal to the distance from the cornea to the peripheral retina.
7. method according to claim 6 is characterized in that, the preferential district of at least one described vision is configured to comprise a zone of described vision therapy equipment, and described zone is selected from the group of being put and being formed by optical center, High eye point, myopia.
8. method according to claim 6 is characterized in that, the preferential district of at least one described vision is configured to comprise High eye point and the near-sighted point in the described vision therapy equipment.
9. method according to claim 4 is characterized in that, the minimum widith in the preferential district of described vision is equal to or greater than the size of the entrance pupil of described eyes approx.
10. method according to claim 7 is characterized in that, the minimum widith in the preferential district of described vision is equal to or greater than the size of the entrance pupil of described eyes approx.
11. Optical devices comprise:
Vision treatment region and at least one vision are preferentially distinguished;
Wherein dispose described vision treatment region with the first predetermined optical design,
Described first optical design is selected to realize to the control of the outer focus of periphery axle with respect to the front and back position of eye retina, and the front and back position of simultaneously axle at center being gone up focus basically is controlled to be close retina; And
Wherein dispose described vision with the second predetermined optical design and preferentially distinguish, described second optical design is selected to control the situation that is defocused the group of forming with other optical aberration by periphery that is selected from.
12. Optical devices according to claim 11, it is characterized in that, for revealing scattered-light vision therapy equipment with the eyes associative list, described vision treatment region to the described control of the front and back position of the outer focus of periphery axle also comprise control by the peripheral focal line of astigmatism generation with respect to amphiblestroid front and back position.
13. Optical devices according to claim 12 is characterized in that, described vision treatment region also comprises the described control of the front and back position of peripheral focal line:
To orientate as towards peripheral retina than the first peripheral focal line of the more close eyes cornea of the second peripheral focal line and become a distance with the eyes cornea, the approximate distance that is less than or equal to from the cornea to the peripheral retina of described distance.
14. Optical devices according to claim 13 is characterized in that, the preferential district of at least one described vision is configured to comprise a zone of described Optical devices, and described zone is selected from the group of being put and being formed by optical center, High eye point, myopia.
15. Optical devices according to claim 13 is characterized in that, the preferential district of at least one described vision is configured to comprise High eye point and the near-sighted point on the described Optical devices.
16. Optical devices according to claim 12, it is characterized in that, described vision treatment region comprises also to the described control of the front and back position of peripheral focal line and becomes a distance with orientating as towards peripheral retina further from the first peripheral focal line of eyes cornea than the second peripheral focal line with the eyes cornea that described distance is approx more than or equal to the distance from the cornea to the peripheral retina.
17. Optical devices according to claim 16 is characterized in that, the preferential district of at least one described vision is configured to comprise a zone of described Optical devices, and described zone is selected from the group of being put and being formed by optical center, High eye point, myopia.
18. Optical devices according to claim 16 is characterized in that, the preferential district of at least one described vision is configured to comprise High eye point and the near-sighted point on the described Optical devices.
19. Optical devices according to claim 14 is characterized in that, the minimum widith in the preferential district of described vision is equal to or greater than the size of the entrance pupil of eyes approx.
20. Optical devices according to claim 17 is characterized in that, the minimum widith in the preferential district of described vision is equal to or greater than the size of the entrance pupil of eyes approx.
21. Optical devices according to claim 17 is characterized in that, comprise that the preferential described optical design of distinguishing of described vision of the optical center of described Optical devices comprises the optical design that is used to control spherical aberration.
22. a device that comprises the optical glass system, described system comprises:
Vision treatment region and at least one vision are preferentially distinguished;
Wherein dispose described vision treatment region with the first predetermined optical design, described first optical design is selected to realize the control to the front and back position of scattered-light peripheral focal line, thereby will become a distance with the eyes cornea than the peripheral retina that the first peripheral focal line of the more close eyes cornea of the second peripheral focal line is orientated as towards eyes, described distance is less than or equal to the distance from the cornea to the peripheral retina approx, and simultaneously the front and back position of focus on the axle is controlled to be basically near retina; And
Wherein the preferential district of at least one described vision is positioned as the optical center that comprises described lens systems, and comprises that the preferential district of described vision of this optical center side by side is configured with the second predetermined optical design basically;
Described second optical design be selected to control be selected from by defocus, at least a situation of group that spherical aberration, astigmatism and coma are formed; And
Comprising the minimum widith in the preferential district of the described vision of this optical center approx more than or equal to the entrance pupil size of eyes.
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CN102763025A (en) * 2009-12-17 2012-10-31 Crt技术股份有限公司 Systems and methods for the regulation of emerging myopia
CN103118627A (en) * 2010-07-26 2013-05-22 视力Crc有限公司 Treating ocular refractive error
CN106461970A (en) * 2014-02-04 2017-02-22 Crt技术股份有限公司 Multifunction contact lens
CN111683629A (en) * 2017-12-11 2020-09-18 香港理工大学 Method, device and system for inhibiting progression of refractive error of an eye
CN114343967A (en) * 2020-10-30 2022-04-15 施温德眼科技术解决方式有限公司 Method for providing control data for an ophthalmic surgical laser of a treatment device, control device and treatment device

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US6045578A (en) * 1995-11-28 2000-04-04 Queensland University Of Technology Optical treatment method
US7803153B2 (en) * 1999-12-29 2010-09-28 New England College Of Optometry Method for preventing myopia progression through identification and correction of optical aberrations
US6752499B2 (en) * 2001-07-11 2004-06-22 Thomas A. Aller Myopia progression control using bifocal contact lenses
ATE452611T1 (en) * 2003-11-19 2010-01-15 Vision Crc Ltd DEVICES FOR CHANGING THE RELATIVE CURRAVITY OF THE FIELD AND THE POSITIONS OF PERIPHERAL AXIS-SHIFTED FOCAL POSITIONS

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CN102763025A (en) * 2009-12-17 2012-10-31 Crt技术股份有限公司 Systems and methods for the regulation of emerging myopia
CN102763025B (en) * 2009-12-17 2014-06-18 Crt技术股份有限公司 Systems and methods for the regulation of emerging myopia
CN103118627A (en) * 2010-07-26 2013-05-22 视力Crc有限公司 Treating ocular refractive error
CN103118627B (en) * 2010-07-26 2016-08-31 视力Crc有限公司 Treatment eye is ametropia
CN106461970A (en) * 2014-02-04 2017-02-22 Crt技术股份有限公司 Multifunction contact lens
CN111683629A (en) * 2017-12-11 2020-09-18 香港理工大学 Method, device and system for inhibiting progression of refractive error of an eye
CN114343967A (en) * 2020-10-30 2022-04-15 施温德眼科技术解决方式有限公司 Method for providing control data for an ophthalmic surgical laser of a treatment device, control device and treatment device

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