CN101721195A - Remote self-help refraction system for presbyopic glasses and method thereof - Google Patents
Remote self-help refraction system for presbyopic glasses and method thereof Download PDFInfo
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Abstract
The invention relates to a remote self-help refraction system for presbyopic glasses, which mainly comprises a data processing center which is suitable to be accessed by a user through a public communication network and can be selectively reflected on a user terminal display device. The data processing center comprises the following modules: (1) a user try-on degree selection module, (2) an analog try-on module which is responsible for displaying an analog try-on vision effect picture of the corresponding degree on the user terminal display device according to the try-on degree selected by the user, wherein the analog try-on vision effect pictures of different degrees are calculated by a magnifying power formula (1) or formula (2) of a lens and drawn according to calculated results; and (3) an information prompt and refraction display module. The invention also relates to a remote self-help refraction method for the presbyopic glasses. The remote self-help refraction system and the self-help refraction method for the presbyopic glasses can realize remote refraction and acquisition of refraction data, and can conveniently and rapidly obtain glasses meeting the requirements so as to protect the eyes of wearers.
Description
Technical field
The present invention relates to a kind of remote self-help refraction system for presbyopic glasses and method thereof.
Background technology
The people with age, crystalline lens hardens gradually, elasticity weakens, crystalline plasticity and flexibility decrease, the function of ciliary muscle lowers gradually, thereby the regulating power that causes eye descends gradually, approximately from 40-45 year, near objects difficulty situation occurs seeing, this regulate to weaken because of the physiological due to the age be called presbyopia, be commonly called as presbyopia.Though about 40 years old to 60 years old, do not taking place under the ophthalmic prerequisite, Presbyopia is regular usually to be changed, but traditional mirror method of joining generally needs client to draw the number of degrees to the optometry of vision inspection center can to join mirror, the vision that requires a great deal of time inspection center carries out on-the-spot optometry, it is also inconvenient both to have taken time, cause many thisly regulate the Presbyopia crowd who weakens because of the physiological due to the age and at will buying secondary presbyopic glasses and wear in the curbside, because do not obtain correct guide and wear the glasses of the suitable own number of degrees, the wearer often wears bad eyes, causes bad consequence; And, up to this point, do not see the method that the someone proposes to carry out remote self-help refraction yet.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art; mainly be by a kind of remote self-help refraction system for presbyopic glasses and method thereof are provided; can the user realize long-range optometry and obtain the optometry data by clearly distinguishing the appointment sighting target that simulation is tried in the vision design sketch; realization is finished the optometry process by methods such as networks; can make the user conveniently obtain satisfactory qualified glasses, thus protection wearer's eyes.
Remote self-help refraction system for presbyopic glasses provided by the present invention, it mainly is suitable for by one, and the user enters by public communication network and the data processing centre that can optionally be reflected on the user terminal displays device forms, and wherein said data processing centre comprises with lower module:
(1) user tries the number of degrees on and selects module: be responsible for providing various and try reading on and select for the user;
(2) module is tried in simulation on: be responsible for the number of degrees of trying on according to user's selection, show that on the user terminal displays device vision design sketch is tried in the simulation of the corresponding number of degrees on; The simulation of the different number of degrees is tried enlargement ratio formula (1) or the formula (2) that the vision design sketch is scioptics on and is calculated and draw according to the result of calculation correspondence;
(3) information cue and prescription display module: be responsible for prompting eyes of user distance display device and be adjusted to 30 ~ 40 centimeters and select clearly to distinguish that simulation tries the appointment sighting target in the vision design sketch on?
When a. the user selects "No", then enter the detection of other number of degrees, promptly repeat to enter module (1), (2);
When b. the user selects "Yes", then the optometry data of the correspondence of explicit user or opticians degree number.
Wherein said enlargement ratio formula is: formula (1) or formula (2).
Formula (1): refractive power enlargement ratio
In the formula: F: the refractive power of correction mirror is mirror degree (referring generally to summit, back mirror degree), D;
L: the spacing of glasses and these two groups of lens of human eye dioptric system, m.
Formula (2): total enlargement ratio
In the formula: SMs: the form enlargement ratio
T: eyeglass central thickness, m;
N: the refractive index of lens materials;
F
1: the refractive power of lens front surface.
Further on the basis of described module (1), increase the distant vision detection module is set; Be responsible for prompting eyes of user distance display device and be adjusted to 1.5 meters, and select whether can clearly distinguish specified standard sighting target, the user then enters module (1) when determining clear the distinguishing of energy, otherwise, then point out the user to carry out further on-the-spot the detection to vision inspection center.
Further on the basis of described distant vision detection module, increase to be provided with and detect the confirmation request module.
Wherein can increase the age module on the basis of described module (1): the age module comprises age input and age adaptive rangeability logarithmic data storehouse; The age module is responsible for providing the adaptive scope number of degrees according to user's age input, therefrom selects to try on the number of degrees for the user.
In addition, the invention still further relates to a kind of presbyopic glasses remote self-help refraction method, it mainly is suitable for by one, and the user enters by public communication network and the data processing centre that can optionally be reflected on the user terminal displays device forms, and it may further comprise the steps:
(1) user selects to try on the number of degrees;
(2) data processing centre is according to the number of degrees of trying on of user's selection, the vision design sketch is tried in the simulation that shows the corresponding number of degrees on the user terminal displays device on, and the simulation of the different number of degrees is tried enlargement ratio formula (1) or the formula (2) that the vision design sketch is scioptics on and calculated and draw according to the result of calculation correspondence;
Does is (3) prompting eyes of user distance display device adjusted to 30 ~ 40 centimeters and select clearly to distinguish that simulation tries the appointment sighting target in the vision design sketch on?
When a. the user selects "No", then enter the detection of other number of degrees, i.e. repeating step (1), (2);
When b. the user selects "Yes", then the optometry data of the correspondence of explicit user or opticians degree number.
Wherein said enlargement ratio formula is: formula (1) or formula (2).
Formula (1): refractive power enlargement ratio
In the formula: F: the refractive power of correction mirror is mirror degree (referring generally to summit, back mirror degree), D;
L: the spacing of glasses and these two groups of lens of human eye dioptric system, m.
Formula (2): total enlargement ratio
In the formula: SMs: the form enlargement ratio
T: eyeglass central thickness, m;
N: the refractive index of lens materials;
F
1: the refractive power of lens front surface.
Further can detect step at the preceding distant vision that can be provided with of described step (1), detect in the step at distant vision, prompting eyes of user distance display device is adjusted to 1.5 meters, and select whether can clearly distinguish specified standard sighting target, the user then enters step (1) when determining clear the distinguishing of energy, otherwise, then point out the user to carry out further on-the-spot the detection to vision inspection center.
Wherein said step (1) can be to import the age by the user earlier, and data processing centre provides the adaptive scope number of degrees according to the age of user's input, therefrom selects to try on the number of degrees for the user again.
Describedly from the adaptive scope number of degrees, select to try the number of degrees on and preferably begin to try on from the minimum number of degrees.
In addition, further can before detecting step, described distant vision can also be provided with whether satisfy the detection confirmation request.
The vision design sketch is tried in the simulation that comprises the different number of degrees in remote self-help refraction system for presbyopic glasses of the present invention and the method thereof on, can the user try appointment sighting target in the vision design sketch on by the simulation that clearly distinguish the corresponding number of degrees on the user terminal displays device, realize that remote self-help obtains the optometry data, convenient and swift; And import the age by the user, and the age according to user's input provides the adaptive scope number of degrees then, therefrom selects to try on the number of degrees for the user, can reduce the number of times that the user tries on as much as possible, and the user can obtain the optometry data that oneself needs faster; Increase the distant vision that is provided with and detect step, effect is to judge whether the user exists the ametropia situation, can avoid being not suitable for using the crowd of this refraction system or method to use native system or method, in order to avoid the spended time detection, but the result who obtains is inaccurate; Whether increase to be provided with to satisfy and to detect confirmation request, can confirm further whether the user is fit to use this refraction system or method, avoiding more early is not suitable for using the crowd of this refraction system or method to waste the meaningless time, has more hommization.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the flow chart of remote self-help refraction system for presbyopic glasses of the present invention and method thereof;
The specific embodiment
Below in conjunction with embodiment, further set forth content of the present invention, these embodiment only are used to illustrate the present invention, rather than limit the scope of the invention.
Remote self-help refraction system for presbyopic glasses provided by the present invention, comprise a data processing center, the user can enter by public communication network, and can be optionally with needed message reflection on the user terminal displays device, it also comprises with lower module: (1) user tries the number of degrees on and selects module, (2) simulation to try module, (3) information cue and prescription display module on.
Wherein:
(1) user tries the number of degrees on and selects module: be responsible for providing various and try reading on and select for the user;
(2) module is tried in simulation on: be responsible for the number of degrees of trying on according to user's selection, show that on the user terminal displays device vision design sketch is tried in the simulation of the corresponding number of degrees on; The simulation of the different number of degrees is tried enlargement ratio formula (1) or the formula (2) that the vision design sketch is scioptics on and is calculated and draw according to the result of calculation correspondence;
(3) information cue and prescription display module: be responsible for prompting eyes of user distance display device and be adjusted to 30 ~ 40 centimeters and select clearly to distinguish that simulation tries the appointment sighting target in the vision design sketch on?
When a. the user selects "No", then enter the detection of other number of degrees, promptly repeat to enter module (1), (2);
When b. the user selects "Yes", then the optometry data of the correspondence of explicit user or opticians degree number.
Wherein said enlargement ratio formula is: formula (1) or formula (2).
Formula (1): refractive power enlargement ratio
In the formula: F: the refractive power of correction mirror is mirror degree (referring generally to summit, back mirror degree), D;
L: the spacing of glasses and these two groups of lens of human eye dioptric system, m.About its start position, three kinds of suggestions are arranged:
(1) principal point with eye is a starting point, because of distance such as the object distances, image distance, far point distance, anomalistic distance etc. that relate generally to the refraction of eye system all are the beginning with the principal point, so the scholar who has advocates that (Gullstrand precision schematic eye first principal point is positioned at rear, the preceding summit of cornea as starting point for first principal point with eye.
(2) node with eye is a starting point, because of generally speaking, the image size is to be determined by the light by ophthalmic segment point, thus opinion with the primary nodal point of eye as the original bench mark point, in this way, L-value (mm)=mirror eye distance (mm)+7.33mm (this point is positioned at 7.33mm place, rear, the preceding summit of cornea).
(3) the entrance pupil center with eye is a starting point, BennettShi thinks: fuzzy optogram is dim picture, the size of picture determined by the light by the entrance pupil center, in this way, and L-value=mirror eye distance (mm)+3mm (the preceding summit of entrance pupil elongation film rear 3mm).
For the present invention, the L-value in the formula can adopt wherein any in three kinds of suggestions.
Formula (2): total enlargement ratio
In the formula: SMs: the form enlargement ratio
T: eyeglass central thickness, m;
N: the refractive index of lens materials;
F
1: the refractive power of lens front surface.
Further improve and be: can on the basis of described module (1), increase the distant vision detection module is set; Be responsible for prompting eyes of user distance display device and be adjusted to 1.5 meters, and select whether can clearly distinguish specified standard sighting target, the user then enters module (1) when determining clear the distinguishing of energy, otherwise, then point out the user to carry out further on-the-spot the detection to vision inspection center.Be that whole system comprises with lower module: distant vision detection module, user try the number of degrees on and select module, simulation to try module, information cue and prescription display module on.
Further improve and be: the front increases to be provided with on the basis of described distant vision detection module again detects the confirmation request module.Be that whole system comprises with lower module: detection confirmation request module, distant vision detection module, user try the number of degrees on and select module, simulation to try module, information cue and prescription display module on.
Wherein can increase the age module on the basis of described module (1): the age module comprises age input and age adaptive rangeability logarithmic data storehouse; The age module is responsible for providing the adaptive scope number of degrees according to user's age input, therefrom selects to try on the number of degrees for the user.Be that whole system comprises with lower module: detection confirmation request module, distant vision detection module, age module, user try the number of degrees on and select module, simulation to try module, information cue and prescription display module on.
Testing process of remote self-help refraction system for presbyopic glasses of the present invention and method thereof (Fig. 1) and ultimate principle:
1, after the user enters the system that makes up according to presbyopic glasses remote self-help refraction method of the present invention, occurs whether satisfying detecting requiring prompting? the user clicks and enters detection system after "Yes" is confirmed, otherwise, then withdraw from native system.(detection wherein requires:
The disease (as: diabetes) that a, tester do not have any ophthalmic (as: cataract, glaucoma) and affect one's power of vision;
B, testing environment have suitable luminosity, and eyes are checked normally looking under the thing state (promptly must not blink).)
2, enter detection system after, at first enter distant vision and detect step, the prompting eyes of user keeps 1.5 meters distance with display device, and shows the standard visual acuity chart of presetting (also can be specified standard sighting target) in display device; Right and left eyes to the user detects separately respectively, confirm that by the user whether right and left eyes is all (or all can clearly not distinguish specified sighting target) more than 5.0 or 5.0, the user then enters next when determining clear the distinguishing of energy and detects step, otherwise, then point out the user to carry out further on-the-spot the detection, and withdraw from native system to vision inspection center.
3, enter subsequent step after, the prompting user imports the true age, and the age of importing according to the user provides the adaptive scope number of degrees, therefrom select to try on the number of degrees for the user, according to the number of degrees of trying on of user's selection, show that on the user terminal displays device vision design sketch is tried in the simulation of the corresponding number of degrees on simultaneously; And begin respectively user's right and left eyes to be detected after pointing out the eyes of user distance display device to be adjusted to 30 ~ 40 centimeters; Can and prompting user selection clearly be distinguished and simulate the appointment sighting target of trying in the vision design sketch? the user determines clearly to distinguish when simulating the appointment sighting target of trying in the vision design sketch, the opticians degree number of explicit user in display device then, otherwise, then point out the user to reselect again and try the number of degrees on, up to can be clear distinguish simulation try appointment sighting target in the vision design sketch on after the opticians degree number of explicit user.In addition, also can provide the adaptive scope number of degrees, carry out manually or detection is tried in simulation automatically on from the minimum number of degrees according to system, until can clearly distinguish simulation try appointment sighting target in the vision design sketch on after the opticians degree number of explicit user.
Wherein, the adaptive scope number of degrees and relationship with age generally are to begin to be approximately+0.50D～0.75D in 40 years old, and whenever increasing 5 years old then can increase+0.50D, and after 65 years old, basic maintenance+3.50D is constant.
Certainly, the user also can not import the age, and the number of degrees of oneself need directly selecting of trying on detect.
It is that the enlargement ratio formula of scioptics calculates and draws according to the result of calculation correspondence that the vision design sketch is tried in the simulation of the different number of degrees on, and wherein said enlargement ratio formula is: formula (1) or formula (2).
Formula (1): refractive power enlargement ratio
In the formula: F: the refractive power of correction mirror is mirror degree (referring generally to summit, back mirror degree), D;
L: the spacing of glasses and these two groups of lens of human eye dioptric system, m.
Formula (2): total enlargement ratio
In the formula: SMs: the form enlargement ratio
T: eyeglass central thickness, m;
N: the refractive index of lens materials;
F
1: the refractive power of lens front surface.
Amplification (or dwindling) effect that takes place owing to the correcting lens refractive power is different, be called refractive power and amplify (or dwindling) multiplying power (SMp), the focal power influence factors such as (radius of curvature) of the refractive index of using refractive power enlargement ratio result calculated to be not consider eyeglass, center thickness, eyeglass front.
Form enlargement ratio and eyeglass refractive power are irrelevant, only relevant with the eyeglass form factors, so it is constant and change the eyeglass form factors at correcting lens mirror degree, for example increase the degree of crook of plus lens, be about to the principal point reach, in fact promptly increased equivalent focal length,, as seen can reach the purpose that changes and control the correction mirror enlargement ratio by change eyeglass form so enlargement ratio reduces.
For making glasses enlargement ratio formula more with practical value, " mirror degree factor " and " form factors " of eyeglass must be included in simultaneously, Here it is the total enlargement ratio of glasses (SM), it is the product of refractive power enlargement ratio and form enlargement ratio.
Above-mentionedly only several specific embodiments among the present invention are illustrated, but can not be as protection scope of the present invention, every equivalence of being made according to the design spirit among the present invention changes or modifies, and all should think to fall into protection scope of the present invention.
Claims (9)
1. remote self-help refraction system for presbyopic glasses, it mainly is suitable for by one, and the user enters by public communication network and the data processing centre that can optionally be reflected on the user terminal displays device forms, and it is characterized in that: described data processing centre comprises with lower module:
(1) user tries the number of degrees on and selects module: be responsible for providing various and try reading on and select for the user;
(2) module is tried in simulation on: be responsible for the number of degrees of trying on according to user's selection, show that on the user terminal displays device vision design sketch is tried in the simulation of the corresponding number of degrees on; The simulation of the different number of degrees is tried enlargement ratio formula (1) or the formula (2) that the vision design sketch is scioptics on and is calculated and draw according to the result of calculation correspondence;
(3) information cue and prescription display module: be responsible for prompting eyes of user distance display device and be adjusted to 30 ~ 40 centimeters and select clearly to distinguish that simulation tries the appointment sighting target in the vision design sketch on?
When a. the user selects "No", then enter the detection of other number of degrees, promptly repeat to enter module (1), (2);
When b. the user selects "Yes", then the optometry data of the correspondence of explicit user or opticians degree number.
2. remote self-help refraction system for presbyopic glasses according to claim 1 is characterized in that:
On the basis of described module (1), increase the distant vision detection module is set; Be responsible for prompting eyes of user distance display device and be adjusted to 1.5 meters, and select whether can clearly distinguish specified standard sighting target, the user then enters module (1) when determining clear the distinguishing of energy, otherwise, then point out the user to carry out further on-the-spot the detection to vision inspection center.
3. remote self-help refraction system for presbyopic glasses according to claim 2 is characterized in that:
On the basis of described distant vision detection module, increase to be provided with and detect the confirmation request module.
4. remote self-help refraction system for presbyopic glasses according to claim 1 is characterized in that:
Increase the age module on the basis of described module (1): the age module comprises age input and age adaptive rangeability logarithmic data storehouse; The age module is responsible for providing the adaptive scope number of degrees according to user's age input, therefrom selects to try on the number of degrees for the user.
5. presbyopic glasses remote self-help refraction method, it mainly is suitable for the data processing centre that the user enters and can optionally be reflected on the user terminal displays device by public communication network by one and forms, and it is characterized in that: it may further comprise the steps:
(1) user selects to try on the number of degrees;
(2) data processing centre is according to the number of degrees of trying on of user's selection, the vision design sketch is tried in the simulation that shows the corresponding number of degrees on the user terminal displays device on, and the simulation of the different number of degrees is tried enlargement ratio formula (1) or the formula (2) that the vision design sketch is scioptics on and calculated and draw according to the result of calculation correspondence;
Does is (3) prompting eyes of user distance display device adjusted to 30 ~ 40 centimeters and select clearly to distinguish that simulation tries the appointment sighting target in the vision design sketch on?
When a. the user selects "No", then enter the detection of other number of degrees, i.e. repeating step (1), (2);
When b. the user selects "Yes", then the optometry data of the correspondence of explicit user or opticians degree number.
6. presbyopic glasses remote self-help refraction method according to claim 5 is characterized in that:
Detect step at the preceding distant vision that can be provided with of described step (1), detect in the step at distant vision, prompting eyes of user distance display device is adjusted to 1.5 meters, and select whether can clearly distinguish specified standard sighting target, the user then enters step (1) when determining clear the distinguishing of energy, otherwise, then point out the user to carry out further on-the-spot the detection to vision inspection center.
7. presbyopic glasses remote self-help refraction method according to claim 5 is characterized in that:
Described step (1) can be to import the age by the user earlier, and data processing centre provides the adaptive scope number of degrees according to the age of user's input, therefrom selects to try on the number of degrees for the user again.
8. presbyopic glasses remote self-help refraction method according to claim 7 is characterized in that:
Describedly from the adaptive scope number of degrees, select to try the number of degrees on and preferably begin to try on from the minimum number of degrees.
9. presbyopic glasses remote self-help refraction method according to claim 6 is characterized in that:
Before described distant vision detects step, can also be provided with whether to satisfy and detect confirmation request.
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Application publication date: 20100609 |