WO2015106375A1

WO2015106375A1 - Short-sighted peripheral defocus spectacle lens with wide view field

Info

Publication number: WO2015106375A1
Application number: PCT/CN2014/001157
Authority: WO
Inventors: 段亚东
Original assignee: 段亚东
Priority date: 2014-01-16
Filing date: 2014-12-22
Publication date: 2015-07-23
Also published as: CN103777368B; CN103777368A

Abstract

A short-sighted peripheral defocus spectacle lens with wide view field is a frame spectacle lens, and is provided with a central optical zone (2), a nasal side function zone (3), a temporal side function zone (4) and a transition zone (5). The central optical zone (2) is prepared as a plano lens or a concave lens. The nasal side function zone (3) and the temporal side function zone (4) are provided on the nasal side and the temporal side of the central optical zone (2) respectively, and prepared as a plano lens, a concave lens or a convex lens, for correcting peripheral hyperopia defocus on temporal side retina and nasal side retina.

Description

Wide field of view myopia peripheral defocusing spectacle lens

Technical field

The invention relates to the technical field of glasses, and provides a dual-area myopic peripheral defocus frame spectacle lens for correcting peripheral hyperopia and retinal defocus around the retina, for preventing and controlling children's myopia application.

Background technique

Nowadays medical recognition: the growth of eyeballs in children's myopia depends on the regulation of defocus around the retina. The hyperopic defocus around the retina promotes the growth of the eyeball, corrects the hyperopic defocus around the retina, and can control the growth of myopia. Conventional myopia glasses, single-lens concave lens, double-gloss lens and progressive multifocal lens, while correcting the front defocus of the retina, the concave lens on the peripheral part of the lens increases the far-sighted defocus around the retina, promotes eye growth and promotes the degree of myopia. increase.

Smith EL pioneered the invention of Peripheral defocus eyeglasses in 2005. The Chinese patent name: lenses for myopia correction, patent number: 2006800441239, which discloses that the central optical zone is a perfect circular perimeter defocus. Spectacles. Another Chinese patent name: ophthalmic lens element, patent number: 2008801159183, which discloses that the central optical zone is a horizontal elliptical peripheral defocusing spectacle lens. The patent was launched by Carl Zeiss Optics, Germany, on August 24, 2010. peripheral defocus models eyeglasses frame, trade name Zeiss growing music (myovision ^TM) lenses. Zeiss Growth Music Eyewear has been sold in 8 countries and regions including China. The Chinese patent also discloses other applications for peripheral defocusing spectacle lenses: patent name: myopia glasses, patent number: 2012100191090; patent name: myopia glasses, patent number: 2012200274205; patent name: a full-focus myopia recovery mirror, patent number: 2012202076425 Patent name: a spectacle lens, patent number: ZL2012205833037. The peripheral defocused lens glasses currently on the market are: Rock Optics's special security lens, and Dyna Optics' superior lens.

The patent and sales of the above-mentioned peripheral defocusing spectacle lens are designed to design the peripheral functional area into a 360° full-circumference range, which is referred to herein as a peripheral defocusing spectacle lens. The central optical zone is placed in the center of the lens, the optical field of view is relatively narrow, and there is almost no optical field of view that looks up and down. It is necessary to rely on the head movement to complete dynamic vision, just like the "tubular view" of glaucoma. This kind of narrow-field peripheral defocusing spectacle lens is easy to cause many symptoms such as visual fatigue and dizziness, especially when it is swept to the nasal side and the temporal side. (Recognition 1: Chen Zhi: Wearing the mid-circumference and adding light to the periphery of the lens Analysis of diopter and compliance, Chinese Journal of Otolaryngology, 2012; 12 (4): 216-218).

The latest medical research found that the periocular retina is relatively refractive, the horizontal and vertical diameter lines are asymmetrical, and the temporal retina and nasal retina of the horizontal path show peripheral hyperopia defocus, induce eye growth, and vertical diameter The superior retina and the lower retina show myopic defocus and do not induce any increase in eye growth.

Berntsen DA measured relative refractive measurements in 192 cases of myopia in children with four quadrants around the retina. Measurement results: Peripheral defocusing around the horizontal diameter line shows hyperopia defocusing, 30° nasal retina is +0.56±0.59DS; 30° temporal retina is +0.61±0.77DS, while vertical radial line surrounding relative refraction shows myopia Sexual defocus, 30° upper retina is -0.36±0.92DS; 20° lower retina is -0.48±0.83DS (cited literature 1: Berntsen DA: Study of Theories about Myopia Progression (STAMP) Design and Baseline Data, Optom Vis Sci, 2010; November; 87(11): 823-832; Citation 2: Atchison DA: Peripheral refraction along the horizontal and vertical visual fields in myopia, Vision Res, 2006; 46: 1450-1458; Citation 3: Myrowitz EH: Juvenile myopia Progression, risk factors and interventions, Saudi Journal of Ophthalmology, 2012; 26: 293-297).

Chen Xiang measured the relative refractive of 20°, 30°, and 40° peripherals in 40 children and 42 adults in China, and measured the four quadrants of the temporal retina, the nasal retina, the upper retina, and the lower retina. Measurement results: Perimetry defocusing around the horizontal diameter line and hyperopic defocusing around the vertical line line (Chen X: Characteri stics of peripheral refractivc errors of myopic and non--myopic Chinese eyes) , Vision Res, 2010; 50: 31-35).

The relative refractive of the temporal retina and the nasal retina around the horizontal axis shows hyperopic defocus, which has been recognized by the ophthalmology community. Ophthalmic clinical studies only use the refractive index of the horizontal retina around the periphery as the relative refractive state of the periphery, but do not make any measurement for the refractive status of the retinal periphery of the vertical radial line. The following references also cite this argument: 1. Dai Yusen: Children with myopia Peripheral refraction after wearing a single light microscope, International Journal of Ophthalmology, 2013, 13 (2): 399-341. 2, Chen Zhi: The effect of different correction methods on the peripheral diopter of children's eyes, Chinese Journal of Optometry and Visual Science, 2010 , 12 (1): 29-32. 3, Shang Lina: Research on the method of measuring the peripheral refractive measurement under the frame glasses, Chinese Journal of Optometry and Visual Science, 2010, 12 (3): 204-208. 4, Song Yanxia : Study of the effect of Orthokeratology on the refractive of the periphery of the eye, Master thesis, 2010. 5, Chen Yanxu: Research on the refractive status of myopia in different correction modes, Master thesis, 2010. 6. Gong Lu: Research on the relationship between the regulation function and the peripheral refractive and myopia under continuous working conditions, Master thesis, 2010. 7. Jin Yi: Research on the refractive status of the human eye under different stimulating stimuli, Master thesis, 2009.

Smith EL applied rhesus monkeys to study the defocusing induction of the lens periphery, and the experimental monkeys wore -3.00DS frame glasses. The spectacle lenses were divided into a full field group and a nasal side field group, and the nasal side field of view was a half field field of view. Experimental results: The far-sighted defocus around the retina of the nasal view group was more obvious than the whole-field group, and the vitreous cavity increased and the axial length increased. The full field of view also produces hyperopic anisometropia. Peripheral defocusing around the retina that induces eye growth is a local, regionally selective mechanism (Local, Regionally Selective Mechanisms), and the temporal retinal and nasal retina dominate the eyeball growth regulation (cited literature 1: Smith EL: Effect of Local Myopic Defocus) On Refractive Development in Monkeys, Optom Vis Sci, 2013; 90: 1176-1186. Citation 2: Smith EL: Effects of Opticai Defocus on Refractive Development in Monkeys, Evidence for Local, Regionial Selective Mechanisms, Invest Ophthalmol Vis Sci, 2010; 51:3864-3873. Citation 3: Smith EL: Hemiretinal form deprivation: evidence for local control of eye growth and refract ive development in infant monkeys, Invest Ophthalmol, Vis Sci, 2009, Nov; 50(11): 5057-5069 ).

Animal experiments and human clinical trials have shown that peripheral hyperopia defocusing, which induces eye growth, is not a full-circumference orientation, but a local, regionally selective mechanism. It is a horizontal-diameter retinal and nasal retinal peripheral hyperopic defocusing-induced eyeball. increase.

The Chinese patent filed by the inventor of the present invention: patent name: a myopia correction lens for peripheral vision, patent number: 201210509562X; patent name: a full-focus correction lens, patent number: 2013101483141. A three-zone peripheral defocusing spectacle lens is disclosed, wherein the central optical zone is disposed in the center of the lens and the lower quadrant, and the peripheral functional zone is disposed on the mirror side, the nose side and the temporal side quadrant, and the three-zone lens still has a relatively narrow field of view. In particular, the far-sighted area is more narrow.

There are also scholars who design corneal contact lenses or orthokeratology lenses that only correct hyperopic defocus around the temporal and nasal retinas. Contact lenses or Ortho-K lenses can be used in close contact with the cornea to achieve a therapeutic effect, which in turn leads to the risk of corneal dryness and corneal infection. The best period for peripheral defocus correction is 6~ At the age of 12, the frame glasses are more suitable for children to wear than the contact lenses. It is safer and more convenient to wear, and does not cause any damage to the eyes.

At present, there are no patents, non-patent documents and related products listed on the bifocal defocusing spectacle lens. It has created a peripheral defocusing spectacle lens with wide vision, comfortable wearing and good curative effect. One of the technical challenges.

Summary of the invention

The object of the present invention is to provide a peripheral defocusing frame spectacle lens with wide field of vision, comfortable wearing and good curative effect, and another purpose is to correct the far vision defocusing and prevent and control myopia around the nasal retina and the temporal retina. Use in eye glasses.

The object of the invention is achieved by the following technical solutions:

A wide field of view myopia peripheral defocusing spectacle lens is a frame refractive spectacle lens, hereinafter referred to as such an ophthalmic lens. The spectacle lens is a localized dual-region peripheral defocusing lens for correcting the peripheral retinal and the nasal retinal peripheral hyperopia. The specular field of view sets the central optical zone, the nasal side functional zone, the temporal side functional zone and the gradual zone.

The central optical zone is a visual optical field of view for correcting the central retinal myopic defocus. The symmetry is disposed above the axis of the optical axis along the vertical axis of 270°-90°, and is provided with the upper sector, the middle portion and the lower side. Sector. The upper sector is an upward angle, and the peripheral portion of the mirror is clockwise toward the axial position of 195° to 345°, and the circumferential azimuth is between 60° and 150°. The two arcs of the middle portion are inwardly recessed toward the optical center. Curved or outwardly convex outward arc, the lower sector is a downward angle, located in the peripheral portion of the mirror from 30° to 150° clockwise and 20° to 120° in circumferential azimuth. The length of the vertical optical line in the central optical zone is 70 mm to 76 mm, and the length of the horizontal line along the optical center in the middle portion is 10 mm to 40 mm. The central optical zone continuously penetrates the mirror field of the upper sector, the middle portion and the lower sector. A flat lens or a concave lens sheet having the same diopter is prepared.

The nasal functional zone and the temporal functional zone respectively corrected the hyperopic defocus around the corresponding temporal retina and nasal retina. The nasal side functional area and the temporal side functional area are symmetrically disposed above the horizontal axis of the optical center at an angle of 180° to 360°, the nasal side of the central portion of the central optical zone, and the peripheral portion of the temporal side lens, and the nasal side functional area. It is arranged in the area around the mirror surface clockwise to the axial position of 300 ° ~ 60 °, the circumferential azimuth angle of 80 ° ~ 120 °, the side of the functional area is located in the peripheral part of the mirror surface clockwise direction of the axis 120 ° ~ 240 °, circumferential orientation An angle of 80° to 120°. The nasal functional zone and the temporal functional zone, at least 15 mm to 20 mm from the optical center, occupy at least a circumferential azimuth angle of ≥ 90°, and at least prepare a difference of +1.00 DS to +3.00 DS with respect to the central optical zone diopter. Flat lens or concave lens or convex lens.

A gradual change zone of +0.25DS~+0.50DS is prepared between the central optical zone and the nasal functional zone and the temporal functional zone. The width of the gradual zone is ≥5mm, and the central optical zone is completely mixed into the nasal functional zone and the temporal side function. Within the district.

The spectacle lens prepared above is of a symmetrical application type, and can be arbitrarily mounted in the left or right eyeglass frame regardless of the left and right sides.

Preferably, the ophthalmic lens is provided in the middle portion of the central optical zone, the horizontal radial length along the optical center is 15 mm to 30 mm, and the upper sector is located in the peripheral portion of the mirror surface clockwise to the axial position 210 ° to 330 °, circumference The azimuth is in the range of 90° to 120°, and the lower sector is located in the peripheral portion of the mirror at a clockwise direction of 45° to 135° and a circumferential azimuth of 30° to 90°. The circumferential azimuth of the upper sector> the circumferential azimuth of the lower sector, the horizontal diameter of the 5mm~8mm below the optical center is 10mm~15mm, with the horizontal line along the optical center as the reference line and the upper sector. Area> Lower area of the sector, arc length of the upper sector, chord length> arc length of the lower sector, chord length, optical center of the central optical zone above the geometric center of the mirror, or 5mm~8mm above the geometric center of the mirror .

The nasal side functional area is located in the peripheral part of the mirror from 310° to 50° clockwise and 90° to 100° in the circumferential azimuth. The functional area of the temporal side is located in the clockwise direction from 130° to 230° in the circumferential direction of the mirror. In the angle of 90° to 100°, the shape of the nasal side functional area and the temporal side functional area are the same, and the circumferential azimuth, arc length and chord length are equal. The circumferential azimuth angle, the upper sector sector ≥ the nasal side functional area = the temporal side functional area > the lower side sector area; the temporal side functional area + the nasal side functional area ≥ the upper side sector area + the lower side sector area, the central optical zone Area > sum of the area of the nasal side functional area and the temporal side functional area. The nasal side functional area and the temporal side functional area are arranged in a symmetrical vertical elliptical shape, and the diopter of the nasal side functional area and the temporal side functional area are prepared according to the corresponding temporal retinal and nasal retinal peripheral diopter number. .

The hard optical frame lens of the ophthalmic lens is prepared by preparing the outer mirror surface and the inner mirror surface as aspherical surfaces, and the inner mirror surface adopts a numerical control lens milling lathe for milling, grinding, polishing, surface surface measurement and correction grinding. The process is prepared. The optical spot density of single-point milling is accurate to 0.1μm, the shape accuracy of optical free-form surface is μm, the surface precision is nm, and the luminosity is 0.01DS.

The rigid optical frame lens is a synthetic lens containing a blue light absorber, a violet light absorber, or a coated lens with a blue light anti-violet radiation film layer on the surface of the lens.

The hard optical frame lens is applied by laser to print the shape position of the central optical zone and the permanent invisible mark of the horizontal diameter of the central optical zone. The surface of the lens is printed with the lens + word, the upper view area, the horizontal mark, and the central optical zone. The binocular symmetrical lens, the right eyeglass lens, and the left eyeglass lens are temporarily visible to identify the glasses for customization and assembly.

The rigid optical frame lens can also be prepared as an asymmetric ophthalmic lens, and the lower side sector of the central optical zone of the right and left ophthalmic lenses is moved inwardly from the nasal side by a range of 2 to 5 degrees.

The preparation method of the pressure-applied flexible refractive lens of the spectacle lens is as follows: a soft transparent plastic polymer material is selected, and a film-like flexible refraction having a thickness of 0.5 mm to 2.0 mm is prepared by centrifugal casting, cutting or direct molding. The lens and the mirror surface are prepared with a flexible epoxy resin or subjected to electrostatic adsorption treatment.

The ophthalmic lens can also be provided with a central optical zone, a nasal side functional zone and a temporal side functional zone, and a dual zone bifocal lens without a gradual zone, the position, shape, size and diopter of each zone are unchanged.

The ophthalmic lens can also be prepared as a partial single-zone peripheral defocused lens, and the specular field of view is provided with a central optical zone, optionally at least a nasal functional zone and a temporal functional zone, any one zone, a gradual zone, and a nasal functional zone. Or the mirror field of view of any one of the temporal functional zones is replaced by the central optical zone field of view, and the circumferential azimuth of the nasal or functional zone is 90° to 180°.

The nasal side functional zone of the ophthalmic lens is disposed within the mirror side nasal side, the nasal upper side and the lower nasal side area, and the temporal side functional area is disposed within the specular field side, the superior side and the inferior side area.

The rigid optical frame spectacle lens is mounted in a single-layer or double-layer frame spectacle frame, the central optical zone is prepared as a flat lens, and the nasal side functional zone and the temporal side functional zone are prepared as a +1.00DS to +3.00DS lenticular lens sheet. The ophthalmic lens is installed in the single-layer spectacle frame, and is used for the presbyopia of the myopic eye and the child of the mild myopia. The central optical zone is prepared as a flat lens, and the nose side functional zone and the temporal side functional zone are prepared as an eyeglass lens of a +1.00DS to +3.00DS lenticular lens sheet, which is installed in an additional eyeglass frame of the double-layer glasses for use in myopic eyes. When wearing in a close-up manner, only the double-lens frame main frame in which a single-lens concave lens sheet is mounted is usually worn. The central optical zone is prepared as a -1.00DS to -8.00DS concave lens sheet, and the nasal side functional area and the temporal side functional area are prepared as flat or convex lens sheets having a difference of +1.00DS to +3.00DS with respect to the central optical area diopter. The ophthalmic lens of the concave lens sheet is installed in the single-layer spectacle frame and is used for the vision of the nearsighted eye. Wear it as you approach it. The lens-fitted flexible refractive lens is attached to the surface of the rigid optical frame lens, the central optical zone is prepared as a flat lens, and the nasal side functional zone and the temporal side functional zone are prepared as a pressure of a +1.00DS to +3.00DS lenticular lens sheet. A flexible refractive lens is attached to the surface of the rigid optical frame lens.

A new use of the ophthalmic lens, the ophthalmic lens provided with the central optical zone, the nasal functional zone, the temporal functional zone and the gradual zone is used to correct the hyperopic defocus around the retina and the nasal retina of the corresponding temporal side, and to prevent eyeballs of children and adolescents. New use in glasses with increased growth and myopia.

The present invention is advantageous compared to the prior art:

1. The invention overcomes the technical defects of the existing full-area and three-zone peripheral defocusing spectacle lenses, which have narrow visual field, poor refractive error, poor curative effect, and dizziness after wearing.

2. The present invention utilizes the local and regional selective mechanism of hyperopic defocus around the retina, and is directed to the temporal retina and the peripheral retinal peripheral hyperopia, and the functional area is only designed on the mirror nasal side and the temporal side field. Increases the field of view of the central optical zone by 5 to 6 times, avoids or reduces anisometropia, improves the efficacy of the functional area, and combines the optical zone and the functional zone with a unified design to meet the needs of the human eye's physiological optical field of view. Meet the surrounding defocus correction area.

3. The invention is the first double-area defocusing frame spectacle lens in the world, which has the advantages of wide field of vision, comfortable wearing and good curative effect, and contributes positively to the human eye health cause, and has great social and economic benefits.

DRAWINGS

Figure 1 is a schematic diagram showing the method of distinguishing the retinal axis of symmetry around the fundus;

2 is a schematic diagram of a method for distinguishing the symmetry axis 4 of the field of view of the mirror;

Figure 3 is a schematic view showing the division of the asymmetric type ophthalmic lens;

Figure 4 is an optical line intent of the eyeglasses;

Figure 5 is a schematic view of the axial position of the ophthalmic lens;

Figure 6 is a schematic view showing a comparison of the field of view of the mirror surface and the outer mirror surface of the spectacle lens;

Figure 7 is a schematic view showing the inward arc of the central portion of the central optical zone of the ophthalmic lens;

Figure 8 is a schematic plan view showing the outer portion of the central optical zone of the ophthalmic lens;

Figure 9 is a schematic view of the nasal side functional zone and the temporal side functional zone being vertically elliptical dual-zone bifocal lenses;

Figure 10 is a schematic view of the nasal side functional zone of the specular peripheral field of view 8 division in the nasal side region;

Figure 11 is a schematic view of the nasal side functional zone of the specular peripheral field of view 8 division in the nasal side region, the nasal upper region and the nasal region;

Figure 12 is a schematic illustration of the invisible and dominant marking of the ophthalmic lens.

In the figure: 1 ophthalmic lens; 2 central optical zone; 3 nasal side functional zone; 4 temporal side functional zone; 5 gradual zone; 6 inward arc shape; 7 outward arc shape; 8 upper sector sector; Area; 10 flat lens; 11 concave lens; 12 convex lens; 13 eyeball; 14 outer mirror surface; 15 inner mirror surface; 16 outer mirror central optical zone field of view; 17 inner mirror central optical zone field of view; 18 lower side sector area to nose Side shifting, 19 vertical elliptical; 20 arc length; 21 chord length; 22: optician + word; 23: upper viewing zone; 24: horizontal marking; 25: central optical zone shape position; 26: central optical zone Horizontal radial length; 27: binocular symmetrical ophthalmic lens; 28: right ophthalmic lens; 29: left ophthalmic lens.

Fundus retinal division symbol: CR: central retina; SR: superior retina; IR: inferior retina; NR: nasal retina (nasal Retina); TR: temporal retina.

Spectacle area and path symbol of the spectacle lens 4: CV: center vision; SV: superior vision; IV: inferior vision; NV: nasal side view ( Nasal vision); TV: temporal vision; HM: horizontal meridian; VM: vertical meridian.

Spectacle area symbol of the spectacle lens 8: CL: center local; SCL: superi or center Local; ICL: inferior center Local; NL: nasal side (nasal Local) SNL: superior nasal Local; INL: inferior nasal Local; TL: temporal Local; STL: superior temporal Local; ITL: Inferior temporal Local.

detailed description

The meaning of the terms in this manual:

Relative peripheral refraction (RPR) refers to the refractive state of each field of view around the retina relative to the fovea, that is, the difference between the equivalent spherical value and the central concavity of each peripheral viewing angle. The relative refractive of the retina around each quadrant is: upper retinal relative refractive (SR-RPR), lower retinal peripheral relative refraction (IR-RPR), nasal retinal peripheral relative refraction (NR--RPR), Perilateral retinal relative refractive (TR-RPR), horizontal retinal peripheral refraction (HM-RPR) including TR-RPR and NR-RPR, vertical radial retinal relative refraction (VM-RPR) including SR -RPR and IR-RPR.

Retinal defocusing means that the light is not focused on the retina, and is divided into the center of the retina and the defocus of the periphery of the retina. The defocus is divided into the front defocus and the back defocus. The front defocus refers to the light focusing on the retina. Known as myopic defocus, post-defocus refers to the focus of light behind the retina, also known as hyperopic defocus.

The spectacle lens refers to a lens blank or a lens mounted in the spectacle frame, or a press-fit flexible refractive lens attached to the surface of the frame spectacle lens. The outermost mirror surface of the spectacle lens is an outer mirror surface, and the mirror surface near the side of the eye is an inner mirror surface. The frame spectacle lens is divided into a resin ophthalmic lens and a glass ophthalmic lens, and a resin ophthalmic lens is preferred. The central optical zone of the spectacle lens can be prepared with different refractive index, diopter, spherical or aspherical surface. The 1.56 refractive index aspherical lens is preferred, and the mirror surface is clearer, easier and more natural.

The frame spectacle lens of the invention can be mounted on the single-layer spectacle frame, the additional spectacle frame of the double-layer spectacle frame, and the main spectacle frame of the double-layer spectacle frame, and the press-fit flexible refractive lens can be pasted on the frame spectacle lens. The double-layer glasses frame is selected as a snap ring type, a folding type, a screw type, a hook type, a clip type or a magnet adsorption type, and the magnet adsorption type is preferred, which is more suitable for children to wear.

The spectroscopy section, the radial line, the axial position, the azimuth angle, the shape, the size and the radius of curvature of the present invention are further described in detail below with reference to the accompanying drawings:

A wide field of view myopia peripheral defocusing spectacle lens, hereinafter referred to as such ophthalmic lens. The spectacle lens is a hard optical frame spectacle lens, which is also a pressure-applied flexible refractive lens attached to the surface of the hard optical frame spectacle lens. It is localized and regioselective of the retina, and has a targeted, direct correction of the temporal retina and the nasal retina. The peripherally far-sighted defocused lens is therefore referred to as a local dual-area peripheral defocused lens.

This type of spectacle lens is a press-on lens, also known as a Fresnel lens. The preparation technique adopts the Chinese patent previously filed by the inventor. Patent name: a rectifying retina Peripheral defocusing lens, patent number: 2013100505942; patent name: a full defocusing lens, patent number: 201302263613.

The following is a method for preparing a pressure-applied flexible refractive lens: a soft transparent plastic polymer is selected as a pressure-sensitive flexible refractive lens material, and a plastic is also called a plastic. Selected from polycarbonate, polyimide, polyethylene, polyvinyl alcohol, polystyrene, polyvinyl chloride, polypropylene, polyurethane, polytetrafluoroethylene, polyhydroxyethyl methacrylate, polymethacrylic ethyl Ester, polymethyl methacrylate, glyceryl methacrylate, monopolymer of methyl cyclohexyl acrylate, acrylamide, polystyrene-methyl methacrylate, propylene-styrene, polyethylene terephthalate One or more of an alcohol ester, polyethylene naphthalate, and vinyl pyrrolidone are used as such a press-fit flexible refractive lens material. Preference is given to starting from polyvinyl alcohol, polyurethane and polyvinyl chloride. A film-like flexible refractive lens having a thickness of 0.5 mm to 2.0 mm is prepared by a centrifugal casting method, a cutting and grinding method, or a direct compression molding method, and a thickness of 1.0 mm is preferably prepared. The pressure-applied flexible refractive lens is prepared to have a diameter of 70 mm to 76 mm to fit the frame spectacle lens of different diameters, and the flexible refractive lens is pressed to prepare the same mark as the rigid optical frame lens, which is convenient for cutting.

The mirror surface of the flexible refractive lens is prepared by a flexible epoxy resin or after electrostatic adsorption treatment, and is adhered to the rear surface or the front surface of the rigid optical frame lens, preferably to the back surface. Electrostatic adsorption treatment technology is a prior art, also known as corona treatment, which uses high frequency and high voltage to corona discharge on the surface of the treated plastic, so that it can increase the adhesion of the surface, and can apply the existing corona treatment machine. deal with.

The rigid optical frame spectacle lens (1) is prepared by the existing lens processing technology. The spectacle lens (1) outer mirror surface (14) and inner mirror surface (15) were prepared to be aspherical. The inner mirror (15) is made of modern CNC lens processing equipment, such as the German Satisloh, Schneider, Optotech CNC milling lathe, milling, grinding, polishing, surface profile measurement and correction grinding process, optical point of single point milling The density is accurate to 0.1 μm, the shape accuracy of the optical freeform surface is μm, the surface precision is nm, and the luminosity is accurately 0.01 DS. The same size of the central optical zone (2) milling comparison, the central optical zone of the inner mirror surface (17) than the central optical field of the outer mirror (16), the field of view is increased by 30% (Figure 6), the field of view is wider, wear more Comfortable.

The spectacle lens (1) can also be prepared as a radiation-proof peripheral defocused lens, a synthetic lens containing a blue light absorber, a violet light absorber, or a coated lens with an anti-blue-light anti-violet radiation film layer on the surface of the spectacle lens (1). . The blue light absorber is one or more of acrylate, methacrylate, acrylamide, methacrylamide, maleate, styrene, and the violet light absorber is UV-234, UV-326, One or more of UV-327, UV-328, UV-329, UV-400, UV-531, UV-P. The anti-blue light anti-violet radiation film layer is a titanium dioxide layer, an aluminum oxide layer, an indium tin oxide layer, a magnesium oxide layer, a silicon oxide layer, a silicon dioxide layer, a tetraethoxysilane layer, a diethyl oxalate layer, One or more of the magnesium fluoride layer, the copper fluoride layer, the zirconium dioxide layer, the nickel oxide layer, and the tungsten oxide layer are alternately laminated with 7 to 24 layers of coating. With the widespread use of mobile phones and computers, especially children and adolescents, the blue light generated by electronic screens can cause dry eye syndrome and computer video terminal syndrome. The anti-radiation peripheral defocusing spectacle lens (1) is more suitable for children and adolescents with myopia, and achieves the dual effects of correcting peripheral hyperopia defocusing and anti-radiation, one mirror double effect and synchronous learning.

The spectacle lens (1) is prepared by first providing a central optical zone (2), a nasal side functional zone (3), a temporal side functional zone (4), and a gradual zone (5) on the specular field of view. The set specular field of view optical zone and functional area are closely related to the refraction of the retina of the fundus, so the fundus and the mirror should be partitioned first. The international fundus normative zoning method is divided into four division methods and eight division methods according to the peripheral region of the retina. The four division method is the most classical symmetry axis division method, and is also the most commonly used zoning method.

Four division method: the axis of symmetry dividing line is an imaginary line. The imaginary axis of the simulated imagination is based on the 315°-135° axis and the 225°-45° axis. The two axes cross each other at the center of the retinal area. And mirror In the optical center of the field of view, two axes of symmetry divide the retina of the fundus into four symmetrical sectoral regions of the central retina (CR) and the peripheral retina in the central circular region. The four fan-shaped regions are: the superior retina (SR), the inferior retina (IR), the nasal retina (NR), and the temporal retina (TR) (Fig. 1). The specular field of view also divides a circular central viewing zone (CV) at the optical center and four upper quadrants (SV), nasal side (NV), and lower vision zones (IV). ), 颞 side view area (TV) (Figure 2). The four symmetrical sector-shaped areas are the figures enclosed by two arcs of a radius and a radius, which are named after a fan. According to the principle of refraction of the refraction of the lens, the mirrored circular central viewing zone (CV) corresponds to the central retina (CR), and the upper visual zone (SV) of the peripheral part of the mirror corresponds to the lower retina (IR), and the mirrored nasal side view (NV) Corresponding to the temporal retina (TR), the specular lower visual zone (IV) corresponds to the superior retina (SR), and the specular temporal side visual zone (TV) corresponds to the nasal retina (NR). In design, in order to set different central optical zones (2) or different sizes of nasal side functional zones (3) and temporal side functional zones (4), the circumferential azimuths of each zone can be changed and different angular sectors can be set. For example, if the upper viewing zone (SV) opening angle is increased and the lower viewing zone (IV) opening angle is smaller, the upper viewing zone (SV) is designed as a large opening angular sector and the lower viewing zone (IV) is a small angular angular sector. Area.

Eight-division method: Taking the mirror division as an example, two vertical lines and two horizontal lines are crossed each other, and the optical center of the field of view is placed inside the intersection center, and a square central area (CL) located at the center is divided. The upper, lower, nasal and temporal sides are the central upper area (SCL), the central lower area (ICL), the nasal side area (NL), the nasal upper area (SNL), the nasal lower area (INL), and the temporal side, respectively. There are 8 areas in the area (TL), the upper side (STL), and the lower side (ITL).

In order to make the central optical zone (2), the nasal side functional zone (3), the temporal side functional zone (4) and the fundus retina zone closer to each other in the specular field of view, the central view of the four-dimensional method of the specular field of view can be used. The area (CV) is circularly designed to have a diameter of 10 mm to 40 mm, and the square of the central area (CL) of the eight-dimensional method of the specular field of view is designed to have a side length of 10 mm to 40 mm. Then, directly set the central optical zone (2), the nasal side functional zone (3), the temporal side functional zone (4) on the designed four-distance mirror surface (as shown in Fig. 3), or set on the mirror surface of the eight-division method. The central optical zone (2), the nasal side functional zone (3), the temporal side functional zone (4) (Fig. 10) and (Fig. 11).

The central optical zone (2), the nasal side functional zone (3), and the temporal side functional zone (4) are arranged, relying on a horizontal radial line (HM) and a vertical radial line (VM) (as shown in Figure 4), and the axial position and The azimuth (Figure 5) adjusts the optical zone and functional zone position, shape and size. The axial position of the ophthalmic lens refers to the axial position from the right horizontal position of the ophthalmic lens to 0° clockwise, and the azimuth angle of the ophthalmic lens refers to the angle between the two axial positions of the ophthalmic lens.

The settings of the central optical zone (2), the nasal side functional zone (3), the temporal side functional zone (4) and the gradual zone (5) are described in more detail below:

The central optic zone (2) is a visual optical field of view for correcting central retinal (CR) myopic defocus. The purpose is to ensure the visual field of view of the central vision, especially to ensure upward, horizontal and downward gaze range, to achieve a more conformal optic zone. The physiological optics of the human eye is required to overcome and eliminate the technical defects of low compliance and easy to cause dizziness caused by the "tubular field of view" of the peripheral defocused lens. The central optical zone (2) is symmetrically disposed above the vertical radial line (VM) (270°-90° axis) along the optical center, and is provided with an upper sector (8), a middle portion, and a lower sector ( 9) Area. The upper sector (8) is an upward opening angle, and the peripheral portion of the mirror is clockwise toward the axial position of 195° to 345°, and the circumferential azimuth is 60° to 150°. The two arcs in the middle portion are recessed toward the optical center. The inward arc (6) (as shown in Figure 7) or the outwardly convex outward arc (7) (Fig. 8), the lower sector (9) is the downward angle, located at the periphery of the mirror. The hour hand is 30° to 150° to the axial position and the circumferential azimuth is 20° to 120°. The central optical zone (2) has a vertical radial line (VM) length of 70 mm to 76 mm, and the vertical radial line (VM) length is actually the diameter of the ophthalmic lens (1). The horizontal portion along the optical center has a horizontal diameter (HM) length of 10 mm to 40 mm, and the horizontal diameter (HM) length has the first importance in designing the ophthalmic lens (1). Sex, its length is the central field of view of the central optical zone (2), and is also the distance between the temporal side functional zone (4) and the nasal side functional zone (3) from the optical center. The horizontal radial line (HM) is too short, making the central vision The field of view is too small; the horizontal diameter line (HM) is too long, making the functional area too small, affecting the functional area effect. The central optical zone (2) is continuously and continuously passed through the mirror field of the upper sector (8), the intermediate portion and the lower sector (9). The central optical zone (2) is prepared as a flat lens (10) or a concave lens (11) having the same number of diopters for the customization and assembly of the glasses. The central optical zone (2) is prepared as a flat lens (10) for the purpose of being worn by a child with an emmetropic or mild myopia, or as an eyeglass lens with an additional eyeglass frame.

The nasal side functional zone (3) and the temporal side functional zone (4) were set to correct the hyperopic defocus around the corresponding temporal retina (TR) and nasal retina (NR), respectively. The nasal side functional zone (3) and the temporal side functional zone (4) are symmetrically disposed above the horizontal axis (HM) along the optical center, that is, in the region above the axis of 180° to 360°, located in the central optical zone ( 2) The nasal portion of the middle portion and the peripheral portion of the temporal lens. The nasal side functional zone (3) is disposed at a peripheral position of the mirror surface at a clockwise direction of 300° to 60°, a circumferential azimuth angle of 80° to 120°, and a temporal side functional zone (4) is disposed clockwise at a peripheral portion of the mirror surface. The axial position is 120° to 240°, and the circumferential azimuth is 80° to 120°. In order to ensure that the functional area can have enough correction area and sufficient correction degree, at the time of design, the nasal side functional area (3) and the temporal side functional area (4) must guarantee the following three indicators: one is: at least 15 mm to 20 mm from the optical center. The other is: at least occupying a circumferential azimuth angle of ≥90°; and another is: at least preparing a flat lens (10) that exhibits a difference of +1.009S to +3.00DS with respect to the central optical zone (2) diopter. Alternatively, the concave lens sheet (11) or the lenticular sheet (12) preferably has a difference in refractive power of +1.50 DS to +2.00 DS. Functional area efficacy can only be achieved if the functional area reaches a sufficient area and sufficient diopter. The area of the functional area is closely related to the distance from the optical center. The distance from the optical center is 15mm to 20mm, which is also understood as the radius of the optical zone. The radius referred to here refers to the middle part of the central optical zone (2) because of the central optical zone. (2) is vertical radial. The functional area setting is the key technology of the present invention. The functional area is too large, affecting the effective field of view of the optical area, and can not overcome the technical defects of the narrow field of view of the surrounding defocused spectacle lens. The functional area is too small, and the functional area treatment is also not achieved. The effect, another important setting, is to symmetrically set the area above the horizontal radial line (HM) symmetrically, that is, centered on the horizontal radial line (HM) and symmetrically distributed up and down.

The nasal side functional zone (3) and the temporal side functional zone (4) are prepared above the horizontal radial line (HM), which also shortens the mirror eye height and the eyeglass height of the predetermined eyeglasses. Peripheral defocusing spectacle lenses are mainly aimed at children and adolescents. The glasses frames worn at this age are smaller than those for adults. The ZEISS growth lens requires a height of 24mm, which is calculated according to the height of the 瞳: (瞳) ((X-34)/2+22. It is estimated that the mirror ring of the frame frame of Zeiss Growth Music is 38mm. The peripheral defocused spectacle lens of the present invention is intended to be made into a spectacle frame, and the lens ring can be shortened by 2 mm to 4 mm.

A gradient zone (5) with an increment of +0.25DS~+0.50DS is prepared between the central optical zone (2) and the nasal side functional zone (3) and the temporal side functional zone (4), and the gradation zone (5) width ≥ 5 mm The central optical zone (2) is completely mixed into the nasal side functional zone (3) and the temporal side functional zone (4). The incremental amount of the gradual zone (5) is increasing in slope, and the design of the gradual zone (5) is designed to eliminate lens aberration, lens jump phenomenon and ensure the lens is more beautiful between the central optical zone (2) and the functional zone. The functional area can also be completely prepared into a gradual change zone (5) without losing the functional area effect. Another important purpose of the gradual zone (5) is to adjust the distance between the central optical zone (2) and the nasal side functional zone (3) or the temporal side functional zone (4). If the horizontal optical line (HM) of the central optical zone (2) is long, the gradation zone (5) can be set away from the optical center, and the width is appropriately shortened. The central optical zone (2) has a short horizontal line (HM), which can be set closer to the optical center than the gradation zone (5), and the width is appropriately widened. The central optical zone is adjusted by the width of the gradation zone (5). (2) The distance between the nasal side functional area (3) or the temporal side functional area (4) is such that the functional area reaches at least 15 mm to 20 mm from the optical center.

The ophthalmic lens (1) is preferably prepared into a symmetrical application type, and can be arbitrarily installed in the left or right eyeglass frame regardless of the left and right sides. The ophthalmic lens (1) can also be prepared into an asymmetric type, a right lens (R) and a left lens (L). The central optical zone (2) has a lower sector (9) that moves inwardly from the nasal side by a range of 2° to 5° (18) (Fig. 3). Generally, the circumferential azimuth angle of the lower sector (9) of the spectacle lens (1) is set between 25° and 30°, so that the near field of view can be satisfied. Therefore, the symmetric application type is more convenient for lens customization and assembly.

In the preparation process, the ophthalmic lens (1) will be more preferably designed as follows for its central optical zone (2), nasal side functional zone (3) and temporal side functional zone (4):

The middle portion of the central optical zone (2) of the ophthalmic lens (1) has a horizontal radial line (HM) length of 15 mm to 30 mm along the optical center, and the horizontal radial line (HM) length can be imagined as the diameter of the middle portion thereof. The area is equivalent to the direct view of the human eye or the central axis of vision range, and the horizontal diameter of the middle part (HM) is 15mm to 30mm, which can meet the physiological optical field of the human eye. The upper sector (8) is located in the peripheral portion of the mirror at a clockwise direction of 210° to 330°, the circumferential azimuth is between 90° and 120°, and the lower sector (9) is located at a peripheral angle of the mirror at 45° clockwise. ～135°, circumferential azimuth angle 30°～90°. The upper sector (8) circumferential azimuth > the lower sector (9) circumferential azimuth, the purpose is to ensure that the human eye has a larger area of the upward viewing angle, making it more in line with the physiological optical needs of the human eye, especially the human eye Dynamic field of view is required. The horizontal diameter (HM) of the 5mm to 8mm below the optical center is set to be 10mm to 15mm. The field of view of the human eye moving from a distance to a close position is relatively small. This area is also the optical zone and the functional zone. In the successive areas, the horizontal diameter line (HV) of this area is set shorter than the horizontal line (HV) of other areas in the central optical zone (2), so that the horizontal line of the area is appropriately shortened as long as it meets the physiological optical needs. (HM) diameter, the horizontal diameter line (HV) is appropriately shortened, and the problem of contradiction between the optical zone and the functional zone can be better solved. Taking the horizontal radial line (HV) along the optical center as the reference line, the area of the upper sector (8) > the area of the lower sector (9), the upper sector (8), the arc length (20), the chord length (21) )> lower fan sector (9) arc length (20), chord length (21), the purpose of this setting is to make the upper fan sector (8) with a larger opening angle and a relatively larger area to suit the human eye. A large physiological optical field of view for far, upward, and horizontal gaze is required. The optical center of the central optical zone (2) is located above the geometric center of the mirror or 5 mm to 8 mm above the geometric center of the mirror.

The nasal side functional zone (3) of the ophthalmic lens (1) is disposed at a peripheral portion of the mirror surface at a clockwise direction of 310° to 50°, a circumferential azimuth angle of 90° to 100°, and a temporal functional zone (4). It is disposed in the area around the mirror surface in the clockwise direction from 130° to 230° and the circumferential azimuth in the range of 90° to 100°. The circumferential azimuth angle of the nasal functional zone (3) and the temporal functional zone (4) should not be lower than 90° in principle, according to the entire circumferential angle of the lens is 360°, according to the symmetry axis 4 division method, each zone is 90°. Therefore, the azimuth of the functional area ≥ 90 ° can guarantee the correction effect of the functional area. According to the defocus measurement angle of the retina, the circumferential azimuth angle of the nasal side functional zone (3) and the temporal side functional zone (4) cannot be lower than 90°. Due to the symmetrical design, the nasal side functional zone (3) and the temporal side functional zone (4) are symmetric in shape, and the corresponding circumferential azimuth, arc length (20), and chord length (21) are also equal. The optical azimuth of the lens can be easily measured and evaluated by the circumferential azimuth angle, which facilitates the identification and judgment of the glasses customization and assembly process, and can be easily measured by using a compass ruler. The circumferential azimuth of the lens: upper sector (8) ≥ nasal side functional area (3) = temporal side functional area (4) > lower side sector (9); temporal side functional area (4) + nasal side functional area (3) ≥ upper sector (8) + lower sector (9). The area of the central optical zone (2)>the nasal side functional zone (3) and the temporal side functional zone (4), and the area of the optical zone is designed to be larger than the functional zone area under the premise of ensuring a sufficient correction area of the functional zone. ~6 times, still can guarantee the efficacy of the functional area. The nasal side functional zone (3) and the temporal side functional zone (4) of the ophthalmic lens (1) can also be arranged symmetrically to the vertical elliptical shape (19) (Fig. 9). The nasal side functional area (3) and the temporal side functional area (4) diopter of the ophthalmic lens (1) can also be prepared according to the peripheral diopter measured by the corresponding temporal retina (TR) and nasal retina (NR). .

Peripheral diopter measurement: usually using a window-opening field infrared refractometer, such as Grandseiko The wam-5500 model measures the 7-point diopter of the central retina 0°, the temporal retina and the nasal retina horizontal diameter 20°, 30°, and 40°, respectively. The peripheral defocusing spectacle lens (1) is customized according to the actual measured dioptric power. Although the lens is individualized, the peripheral defocused spectacle lens (1) corrects the peripheral hyperopic defocus or artificially forms the peripheral myopic defocus, as long as sufficient or Excessive +0.50DS ~ +1.00DS correction, can achieve functional area efficacy. The peripheral defocusing spectacle lens (1) is customized according to the actual measured dioptric power, and the purpose is to avoid low-quantity correction.

In order to facilitate lens customization and assembly, the ophthalmic lens (1) prints a permanent and temporary mark (Figure 12). The laser is used to print the central optical zone shape position (25) and the central optical zone horizontal radial length (26) permanent invisible logo. The application surface prints the lens + word (22), the upper view area (23), the horizontal line (24), the central optical zone shape position (25), the binocular symmetry lens (D) (27), and the right eye piece ( R) (28), left eyeglasses (L) (29) temporary visual identification, in case of glasses customization and assembly identification.

Such ophthalmic lenses (1) can also be designed with special types of lenses, but are still within the design concept of the present invention. The spectacle lens (1) is provided with a central optical zone (2), a nasal side functional zone (3) and a temporal side functional zone (4), and a dual zone double-light peripheral defocusing lens without a gradual zone (5), each zone location The shape, size and diopter are unchanged. For example, the nasal side functional zone (3) and the temporal side functional zone (4) are set as symmetrical vertical elliptical dual-zone dual-light peripheral defocusing lenses (Fig. 9). The main purpose of this design is to simplify the preparation process of the gradual zone (5) and reduce the cost. The intention is to meet the needs of extremely low consumer groups, but the field of view and functional area of the optical zone have not been reduced. The ophthalmic lens (1) can also be prepared as a partial single-zone peripheral defocused lens with a specular field of view providing a central optical zone (2), optionally at least a nasal side functional zone (3) and a temporal side functional zone (4). Any one zone, gradual zone (5), the mirror field of view of any of the nasal side functional zone (3) or the temporal side functional zone (4), replaced by the central optical zone (2) field of view area, set The circumferential azimuth angle of the nasal functional zone (3) or the temporal functional zone (4) is 90° to 180°. Inducing eye growth in children is the horizontal retinal retina, the most important of which is the hyperopic defocus around the temporal retina, and the functional area is placed in the nasal functional area (3), which can correct the corresponding peripheral hyperplasia of the temporal retina. Jiao, but from the aspects of functional area efficacy, lens symmetry balance, etc., the preparation of such an ophthalmic lens (1) is a more optimal choice for dual-area peripheral defocused glasses.

Finally, it is stated that: the ophthalmic lens (1) nasal side functional area (3) is arranged on the nasal side of the specular field of view, and also includes the nasal upper side and the lower nasal side area of the nasal side, and the temporal side functional area (4) is disposed at The mirror side of the field of view also includes the upper side of the temporal side and the lower side of the temporal side. The maximum circumferential azimuth of the upper sector (8) can be prepared to be 150°, and the minimum circumferential azimuth of the lower sector (9) can be prepared as 20°, the nasal functional zone (3) or the temporal functional zone (4) The minimum circumferential azimuth angle cannot be less than 90°. Based on the concept of the present invention, the central optical zone (2), the nasal side functional zone (3) and the temporal side functional zone (4) may be curved or linear, such as rectangular or not. Regular shape design.

The invention does not simply adjust the range and size of the optical field and the functional area of the lens field, but after long-term experimental design, the division ratio, the shape of each area, the length of the horizontal line, the length of the vertical line, and the axial position. Parameters such as azimuth angle, combined with the results of clinical trial data, after repeated design adjustments, it is achieved that the optical zone and functional zone take into account the unified design, unique design and scientific design, which are not general technical choices in the technical field, and are not for those skilled in the art. Obvious.

The invention overcomes the technical defects such as narrow field of vision, anisometropia, poor curative effect, dizziness after wearing, and the existing defocusing frame spectacle lens of the whole region and the three regions. Using the latest theory of local and selective mechanisms of defocusing around the retina, the functional area is designed and selectively designed to increase the field of view of the central optical zone by 5 to 6 times, while ensuring that the functional area is adequately corrected and has a wide field of view. The technical advantages of wearing comfort, high compliance, no anisometropia, exact curative effect and good effect. This two-zone wide field of view myopia peripheral defocusing spectacle lens, from the lens optical field of view and functional area efficacy, are better than the full The defocusing spectacle lens around the district or the three districts has domestic and international application prospects and social applicability, and has greatly contributed to human society and eye health. The peripheral defocus correction technique of the present invention produces unexpected technical effects, with outstanding substantial features and significant advancements.

The following is a detailed description of the specific parameters of the lens design, the type of lens used in clinical application, the area verification of the optical zone of the lens, the clinical efficacy observation and the clinical efficacy comparison test.

First, the spectacle lens design: the spectacle lens is prepared into a diameter of 70mm, the central part of the central optical zone, the length of the optical center is prepared to a length of 10mm ~ 40mm, the upper sector is prepared into a circumferential azimuth angle of 115 °, the lower sector Prepared into a circumferential azimuth angle of 45 °, the central optical zone is prepared as a 0.00DS flat lens to -8.00DS concave lens, the lens diopter change is measured as -0.25DS, and a composite column lens can be prepared for astigmatism patient customization. The width of the gradation zone is prepared from 5 mm to 15 mm, and the gradation zone is prepared from the outer edge of the central optical zone. The diopter increment of the gradual zone is +0.25 DS. The nasal side functional area and the temporal side functional area, from 20 mm from the center of the optical center to 70 mm from the edge of the lens, are each prepared into a flat lens with a circumferential azimuth angle of 100° and a diopter ratio of +2.00 DS with respect to the central optical region. , concave lens sheet, convex lens sheet.

Second, the clinical lens type: 1, the near-use popular type: the central optical zone is prepared as a flat lens, the nose side functional zone and the temporal side functional zone are prepared as a lens sheet of +1.50DS lenticular lens, installed in a single-layer eyeglass frame, For children with emmetropia and mild myopia, wear them as they are near. 2, near-use anti-radiation popular type: the near-use popular type is prepared into anti-radiation spectacle lenses, used for watching electronic screens such as computers and mobile phones. 3. Additional glasses type: The central optical zone is prepared as a flat lens, and the nose side functional zone and the temporal side functional zone are prepared as lens lenses of +1.50DS convex lens sheets, which are installed in the double eyeglass frame and double eyeglass frames. The main frame is mounted with a single concave concave lens sheet, and the additional eyeglass frame is mounted on the main frame in the near direction. 4. General-purpose type: The central optical zone is prepared as a concave lens sheet of -1.00DS to -8.00DS, and the nasal side functional area and the temporal side functional area are prepared as an ophthalmic lens having a difference of +1.50 DS with respect to the central optical zone diopter, and is mounted. Within the single-layer eyeglass frame, it is used for nearsightedness and near vision. 5. Press-fit lens type: The central optical zone is prepared as a flat lens, and the nasal side functional zone and the temporal side functional zone are prepared as a press-fit ophthalmic lens of a +1.50DS lenticular lens sheet, which is pasted on a common frame spectacle lens.

Third, the lens optical zone area measurement results comparison: 1, the two-zone peripheral defocusing spectacle lens of the invention: the lens diameter is 70mm, the central optical zone intermediate section along the optical center horizontal diameter line length 20mm, the upper side sector zone and the lower side sector zone The sum of the circumferential azimuth angles is 180°, and the sum of the circumferential azimuth angles of the nasal side functional zone and the temporal side functional zone is 180°. 2, the surrounding area of the defocused spectacle lens (Zeiss Glory lens), the lens diameter of 70mm, the central optical zone diameter of 20mm, the functional zone 360 °. 3. Calculation method: The calculation formula of the circular area: S=πr ² . Optical zone area calculation results: the dual-zone peripheral defocusing spectacle lens of the present invention: central optical zone area = central optical intermediate portion 20 mm diameter area + two 90° sector area; peripheral defocusing spectacle optical zone area = central Optical zone 20 mm diameter area. 4. Comparison of optical zone area: The total area of the two types of lenses is 3847mm ² , wherein: the total optical area of the central optical zone of the dual-area peripheral defocusing spectacle lens of the present invention is 2080 mm ² , and the central optics of the peripheral defocusing ophthalmic lens The total area of the area is 314 mm ² , and the area of the central optical zone of the dual-area peripheral defocused spectacle lens of the present invention is larger than the area of the optical zone of the defocused lens of the whole area by 6.625 times.

Fourth, the clinical efficacy observation: clinical verification of the two-region peripheral defocusing spectacle lens has a control development effect on children's myopia.

V. Comparative trial of clinical efficacy: In order to verify the influence of the defocusing frame spectacle lens around the two zones and the defocusing frame spectacle lens around the whole zone and the defocusing frame spectacle lens of the three zones on the anisometropia, the inventors conducted a test comparison and are observing Follow-up is ongoing and submitted in the substantive review.

Finally, it should be clarified that other variations and modifications may be made to the shape and size of the lenses described in this specification, which are also within the scope of the invention.

Claims

A wide field of view myopia peripheral defocusing spectacle lens is a frame refractive spectacle lens, and the technical feature thereof is that the ophthalmic lens (1) is for correcting the temporal retinal (TR) and the nasal retina (NR) peripheral hyperopia. Defocusing the local dual-zone peripheral defocusing lens, the specular field of view is provided with a central optical zone (2), a nasal side functional zone (3), a temporal side functional zone (4) and a gradual zone (5);

The central optical zone (2) is a visual optical field of view for correcting the central retina (CR) myopic defocus, and the symmetry is placed over the vertical axis (VM) (270°-90° axis) along the optical center. There is an upper sector (8), a middle portion and a lower sector (9), and the upper sector (8) is an upward opening angle, and the peripheral portion of the mirror is clockwise to the axial position of 195° to 345°, and the circumferential azimuth. In the region of 60° to 150°, the two arcs in the middle portion are an inward arc (6) that is recessed toward the optical center or an outward arc (7) that protrudes outward, and the lower sector (9) is Downward angle, located in the peripheral part of the mirror, clockwise to the axial position of 30 ° ~ 150 °, circumferential azimuth angle of 20 ° ~ 120 °, central optical zone (2) vertical diameter line (VM) length of 70mm ~ 76mm, the middle part The horizontal radial line (HM) along the optical center has a length of 10 mm to 40 mm, and the central optical zone (2) continuously penetrates through the upper sector (8), the middle portion, and the lower sector (9) mirror field, and is prepared as a flat lens (10) or a concave lens sheet (11) having the same diopter;

The nasal functional zone (3) and the temporal functional zone (4) respectively correct the hyperopic defocus around the temporal retina (TR) and the nasal retina (NR), the nasal functional zone (3), and the temporal functional zone ( 4) Symmetry is set in the area above the horizontal axis (HM) (180° to 360° axis) along the optical center, the nasal side of the central portion of the central optical zone (2), and the peripheral side of the temporal lens. The zone (3) is disposed in a clockwise direction of the periphery of the mirror at a range of 300° to 60°, a circumferential azimuth angle of 80° to 120°, and a side functional zone (4) is disposed at a clockwise direction of the periphery of the mirror 120. °～240°, circumferential azimuth angle 80°～120°, nose side functional zone (3) and temporal side functional zone (4), at least from the optical center 15mm～20mm, occupy at least the circumferential azimuth angle ≥90° , at least preparing a flat lens (10) or a concave lens sheet (11) or a convex lens sheet (12) which exhibits a difference of +1.00 DS to +3.00 DS with respect to the central optical zone (2);

A gradient zone (5) with an increment of +0.25DS~+0.50DS is prepared between the central optical zone (2) and the nasal side functional zone (3) and the temporal side functional zone (4), and the gradation zone (5) width ≥ 5 mm , the central optical zone (2) is completely mixed into the nasal side functional zone (3) and the temporal side functional zone (4);

The spectacle lens (1) prepared above is of a symmetrical application type, and can be arbitrarily mounted in the left or right eyeglass frame regardless of the left and right sides.
The ophthalmic lens according to claim 1, wherein the central portion of the central optical zone (2) has a horizontal diameter (HM) along the optical center of 15 mm to 30 mm and an upper sector (8). Located in the peripheral part of the mirror, the clockwise direction is 210°~330°, the circumferential azimuth is 90°～120°, and the lower sector (9) is located in the peripheral part of the mirror. The clockwise direction is 45°～135°, and the circumferential azimuth. 30°～90° area, upper sector sector (8) circumferential azimuth angle> lower side sector area (9) circumferential azimuth angle, horizontal diameter line (HM) of 5mm～8mm below the optical center is 10mm～15mm, The horizontal radial line (HV) along the optical center is the reference line, the area of the upper sector (8) > the area of the lower sector (9), and the upper sector (8) arc length (20), chord length (21) > Lower sector (9) arc length (20), chord length (21), central optical zone (2) optical center is located above the geometric center of the mirror, or 5mm ~ 8mm above the geometric center of the mirror.
The ophthalmic lens according to claim 1, wherein the ophthalmic lens (1) has a nasal side functional region (3) located at a peripheral portion of the mirror surface clockwise at an axial position of 310° to 50° and a circumferential azimuth angle of 90°. In the ~100° region, the temporal functional zone (4) is located in the peripheral portion of the mirror at a clockwise direction of 130° to 230°, the circumferential azimuth is between 90° and 100°, and the nasal functional zone (3) and the temporal functional zone ( 4) The shape is the same symmetry, the circumferential azimuth, the arc length (20), the chord length (21) are equal, the circumferential azimuth angle, the upper sector (8) ≥ the nasal side functional area (3) = the temporal side function Zone (4)> lower sector (9); temporal side functional area (4) + nasal side functional area (3) ≥ upper sector (8) + lower sector (9), central optical zone (2 Area >The sum of the area of the nasal side functional area (3) and the temporal side functional area (4), the nasal side functional area (3) and the temporal side functional area (4) are set to be symmetrical perpendicular to the elliptical shape (19) The nasal side functional area (3) and the temporal side functional area (4) diopter are prepared according to the corresponding temporal retinal (TR) and nasal retinal (NR) peripheral diopter numbers.
The ophthalmic lens according to claim 1, wherein the frame refractive spectacle lens (1) is a rigid optical frame lens, and the spectacle lens (1) has an outer mirror surface (14) and an inner mirror surface (15). Prepared as an aspherical surface, the inner mirror surface (15) is machined by a CNC lens milling lathe for milling, grinding, polishing, surface profile measurement and correction grinding. The optical point density of single point milling is accurate to 0.1μm, optical The shape accuracy of the freeform surface is μm, the surface precision is nm, and the luminosity is accurately 0.01DS;

The rigid optical frame lens is a synthetic lens containing a blue light absorber, a violet light absorber, or a coated lens with a blue light anti-violet radiation film layer on the surface of the lens;

The hard optical frame lens is laser-printed to print the central optical zone shape position (25), the central optical zone horizontal radial length (26) permanent invisible logo, and the surface is printed with the lens + word (22), upper Viewport (23), horizontal marking (24), central optical zone shape position (25), binocular symmetrical lens (D) (27), right eyeglass (R) (28), left eyeglass (L) ( 29) Temporary display mark for identification and customization of glasses;

The rigid optical frame lens is an asymmetric type ophthalmic lens (1), and the central optical zone (2) of the right ophthalmic lens (R) and the left ophthalmic lens (L) is moved to the nasal side by the lower side sector (9). ° ~ 5 ° area (18).
The ophthalmic lens according to claim 1, wherein the frame refractive spectacle lens (1) is a pressure-applied flexible refractive lens, and a soft transparent plastic polymer material is selected, which is subjected to centrifugal casting, cutting and grinding. A film-like flexible refractive lens having a thickness of 0.5 mm to 2.0 mm is prepared by a direct compression molding method, and a flexible epoxy resin is prepared on the mirror surface or electrostatically adsorbed.
The ophthalmic lens according to claim 1, wherein said ophthalmic lens (1) is provided with a central optical zone (2), a nasal side functional zone (3) and a temporal side functional zone (4), The two-zone dual-lens lens of the gradation zone (5) has the same position, shape, size and diopter.
The ophthalmic lens according to claim 1, wherein the spectacle lens (1) is a partial single-zone peripheral defocusing lens, and the specular field of view is provided with a central optical zone (2), optionally at least a nasal side function. Zone (3) and the temporal side functional zone (4) any of the zones, the gradual zone (5), and the mirrored field of view of any of the nasal functional zone (3) or the temporal functional zone (4) The central optical zone (2) is replaced by a field of view, and the circumferential azimuth (3) or the temporal functional zone (4) is circumferentially azimuth of 90° to 180°.
The ophthalmic lens according to claim 1, wherein the ophthalmic lens (1) nasal side functional zone (3) is disposed in the mirror side nasal side, the upper nasal side and the lower nasal side region, The side functional zone (4) is disposed within the mirror field side, the upper side of the upper side, and the lower side of the lower side.
The ophthalmic lens according to claim 1, wherein the rigid optical frame spectacle lens (1) is mounted in a single-layer or double-layer frame spectacle frame, and the central optical zone (2) is prepared as a flat lens. (10) The nose side functional area (3) and the temporal side functional area (4) are prepared as lens sheets (1) of +1.00DS to +3.00DS lenticular lens sheets (12), which are installed in the single-layer spectacles frame, The parental eye for myopia and the child with mild myopia are worn near; the central optical zone (2) is prepared as a flat lens (10), a nasal functional zone (3) and a temporal functional zone. (4) The ophthalmic lens (1) prepared as a convex lens sheet (12) of +1.00DS to +3.00DS is installed in the additional spectacle frame of the double-layer glasses, and is used for near-sightedness of the nearsighted eye, usually only equipped with Wearing a double-lens frame main frame in which a single-lens concave lens sheet is mounted; the central optical zone (2) is prepared as a -1.00DS to -8.00DS concave lens sheet (11), a nasal side functional area (3) and a temporal side functional area (4) prepared as opposed to medium The central optical zone (2) the flat lens (10) or the lens sheet (1) of the convex lens sheet (12) or the concave lens sheet (11) having a difference in refractive power of +1.00 DS to +3.00 DS is mounted on the single-layer eyeglass frame. For the myopic eye, the telescopic lens is attached to the surface of the rigid optical frame lens, and the central optical zone (2) is prepared as a flat lens (10), the nasal side. The functional zone (3) and the temporal side functional zone (4) are prepared as a press-fit flexible refractive lens sheet (1) of a +1.00DS to +3.00DS lenticular sheet (12), which is attached to the surface of the rigid optical frame lens.
A new use of an ophthalmic lens, the technical feature of which is that the ophthalmic lens (1) provided with the central optical zone (2), the nasal side functional zone (3), the temporal side functional zone (4) and the gradual zone (5) is corrected. Corresponding to the retinal depolarization of the temporal retina (TR) and the nasal retina (NR), the prevention of eye growth in children and adolescents with myopia, and the increase in the degree of myopia.