HK1197938A - Short-sighted periphery defocus spectacle lens with wide view field - Google Patents

Abstract

A wide field myopic peripheral defocused eye lens belongs to health glasses.The current peripheral defocused lenses have a relatively narrow field of view in the central optical zone, which does not meet the physiological optical needs of the eye.The present invention prepares the central optical zone above the vertical axis along the optical center, with the upper fan-shaped zone having an upward opening angle, the middle portion having an inward or outward arc shape, and the lower fan-shaped zone having a downward opening angle, and prepares it as a flat lens or a concave lens.The nasal and temporal functional areas are prepared along the horizontal axis of the optical center, with the central optical area on the nasal and temporal sides. They are made into flat lenses, concave lenses, and convex lenses, which are used to correct hyperopia defocusing around the temporal and nasal retina, control myopic eye growth, have a wide field of view, good wearing compliance, and meet the physiological optical needs of the human eye, effectively preventing and controlling myopia in children and adolescents.

Description

Wide visual field near-sighted peripheral out-of-focus spectacle lens

Technical Field

The invention relates to the technical field of glasses, and provides a double-zone myopia peripheral defocus frame spectacle lens for correcting hyperopic defocus at the peripheries of temporal retina and nasal retina, which is used for preventing and controlling myopia of children.

Background

Medical science today admits: the growth of the eyeball of the myopia of the child depends on the regulation of the peripheral defocus of the retina, the peripheral hyperopic defocus of the retina promotes the growth of the eyeball, the peripheral hyperopic defocus of the retina is corrected, and the growth of the myopia eyeball can be controlled. The single concave lens, the double concave lens and the progressive multifocal lens of the traditional myopia glasses have the advantages that when the front defocusing of the center of the retina is corrected, the concave lens at the periphery of the lens increases the hyperopic defocusing of the periphery of the retina, the growth of eyeballs is promoted, and the myopia degree is promoted to increase.

Smith EL was pioneered in 2005The invention discloses a peripheral out-of-focus frame spectacle lens (Peripherldefocus eyeglasses), which has the following patent names: lenses for myopia correction, patent No.: 2006800441239 which discloses the central optical zone as a right circular peripheral out-of-focus spectacle lens. Another Chinese patent name: ophthalmic lens element, patent No.: 2008801159183 which discloses a central optical zone as a transverse oval peripheral out-of-focus spectacle lens, which was introduced by the Karl Zeiss optics in Germany at 24.8.2010 as the global top peripheral out-of-focus frame spectacle lens, marketed as Zeiss Changle (myovision)^TM) A lens. Zeiss Changle spectacle lenses have been sold in 8 countries and regions such as China up to now. Chinese patent also discloses other peripheral out-of-focus spectacle lens applications: the patent name: myopia glasses, patent No.: 2012100191090, respectively; the patent name: myopia glasses, patent No.: 2012200274205, respectively; the patent name: full focus myopia recovery glasses, patent No.: 2012202076425, respectively; the patent name: an eyeglass lens, patent No.: ZL 2012205833037. The peripheral out-of-focus frame glasses sold in the market at present also have: roche optical Tebao lens and Gandi optical excellent power lens.

The patent and the product sold by the peripheral out-of-focus frame spectacle lens are designed with a peripheral functional area in a 360-degree full-peripheral range, and are called as the full-area peripheral out-of-focus spectacle lens. The central optical zone is arranged at the center of the lens, the optical visual field is relatively narrow, the optical visual field which is watched upwards and downwards is almost not available, and the dynamic vision can be completed by moving a lower head when the vision is near, just like the tubular visual field of glaucoma. The spectacle lens with narrow visual field and out-of-focus periphery is easy to cause symptoms such as asthenopia, dizziness and the like, and is particularly remarkable when glancing to the nasal side and the temporal side (evidence literature 1: anzhi: analysis of peripheral diopter and compliance after wearing the peripheral optical design lens, China journal of otorhinolaryngology, 2012; 12 (4): 216 and 218).

The latest medical research finds that: the retina periphery of the myopic eye is relatively refractive, the horizontal radial line is not symmetrical to the vertical radial line, the temporal retina and the nasal retina of the horizontal radial line show peripheral hyperopic defocus and induce eyeball growth, and the upper retina and the lower retina of the vertical radial line show myopic defocus and do not play any inducing role in eyeball growth.

Bernstsen DA four quadrant retinal periphery relative refraction measurements for 192 myopic children, followed for 17 months. And (3) measuring results: the horizontal radial line periphery shows hyperopic defocus in relation to refraction, and the 30-degree nasal retina is +0.56 +/-0.59 DS; the 30 ° temporal retina is +0.61 ± 0.77DS, while the vertical radial periphery is relatively refractive showing myopic defocus, -0.36 ± 0.92DS for the 30 ° superior retina; the 20 ℃ lower retina is-0.48 + -0.83 DS (ref.1: BernstsenDA: Study of the principles of the about Myopadia development (STAMP) Design and baseline Data, Optom Vis Sci, 2010; November; 87 (11): 823. 832; ref.2: Atchison DA: personal recovery of the horizontal and vertical visual fields in myopaea, Vision Res, 2006; 46: 1450-.

Chenxiang peripheral relative refraction measurements were made in China for 40 children and 42 adults at 20 °, 30 °, 40 °, and four quadrants of temporal, nasal, superior and inferior retinas were measured. And (3) measuring results: the horizontal radial line perimeter shows hyperopic defocus relative to refraction and the vertical radial line perimeter shows myopic defocus relative to refraction (citation: Chen X: characteristics of periodic reconstructing errors of myopic and non-myopic chip eyes, Vision Res, 2010; 50: 31-35).

The temporal and nasal retinal perimeters of horizontal radial lines exhibit hyperopic defocus in relation to refraction, and have been accepted by the ophthalmology community. Ophthalmic clinical studies also only use horizontal radial line retinal peripheral refractive values as peripheral relative refractive states, and do not make any measurements of vertical line retinal peripheral refractive states, and the following references also cite this argument: 1. daiyison: peripheral refraction study of myopic children after wearing single vision glasses, international journal of ophthalmology, 2013, 13 (2): 399-341. 2. And (4) aging: influence of different correction methods on the peripheral diopters of the eyes of children, journal of Chinese eye vision and vision science, 2010, 12 (1): 29-32. 3. Shanina: study of peripheral refraction measurement method under frame-glasses correction, journal of visual acuity and vision science of china, 2010, 12 (3): 204-208. 4. Song Yan Xia: study of the effects of orthokeratology on peripheral refraction in the eye, master's paper, 2010. 5. Chen Yan Xue: study of peripheral refractive status of myopic eyes in different corrective modalities, master's paper, 2010. 6. Gonglu: correlation of accommodative function and peripheral refraction with myopia under continuous near work, master's paper, 2010. 7. Gold benefit: study of the peripheral refractive state of the human eye under different accommodative stimuli, master's paper, 2009.

Smith EL uses a rhesus monkey to carry out experiment research on peripheral defocus induction of the lens, and the experimental monkey is worn with-3.00 DS frame glasses, the spectacle lenses are divided into a full visual field group and a nasal visual field group, and the nasal visual field is a half-lateral visual field. The experimental results are as follows: the peripheral retinal hyperopic defocus in the nasal field group is more pronounced than in the full field group, with the vitreous cavity enlarged and the axis increased. The full field group also produced anisometropia (hyperopic). Peripheral retinal farsightedness Defocus which induces eye growth is proposed to be a Local, regioselective mechanism (Local, regional Selective Mechanisms), temporal retinal and nasal retinal dominant eye growth regulation (citation 1: Smith EL: Effects of Local focal Defocus on regenerative Development in Monkeys, Optim Vis Sci, 2013; 90: 1176. citation 2: Smith EL: Effects of Optical focal regenerative Development in Monkeys, identification for Local, regional Selective strategies, Invest Optical films Sci, 2010; 51: 3864. citation 3873. citation 3: Smith: microscopic expression for Local, developmental expression for Local, insight focus eye, investment of intraocular laser Vis Sci, 50511; Noval and Ocular growth regulation) (Noval 50511: environmental focus of ocular observation and observation 50569).

Animal experiments and human clinical trial research prove that: peripheral hyperopic defocus for inducing eyeball growth is not a whole-peripheral direction, is a local and regional selective mechanism, and is peripheral hyperopic defocus inducing eyeball growth of temporal retina and nasal retina of a horizontal radial line.

The inventor of the present invention previously filed chinese patent: the patent name: a myopic eye peripheral defocus correcting glasses, patent number: 201210509562X; the patent name: a full out-of-focus corrective spectacle lens, patent No.: 2013101483141. disclosed is a three-zone peripheral out-of-focus spectacle lens, wherein a central optical area is arranged in the middle and lower quadrants of the lens, peripheral functional areas are arranged in the upper side, nasal side and temporal side quadrants of the lens, and the three-zone lens still has relatively narrow visual field, especially narrower far vision zone.

There are also students who design corneal contact lenses or orthokeratology lenses (orthokeratology lenses) that correct only hyperopic defocus in the temporal and nasal retina periphery. Contact lenses or orthokeratology lenses are in intimate contact with the cornea to achieve a therapeutic effect, which carries with it the risk of keratoxerosis and corneal infection. The optimal period of peripheral defocus correction is 6-12 years old, and frame glasses are more suitable for children to wear than corneal contact lenses, have and wear safer convenience, do not have any harm to any eyes.

At present, no patent, non-patent documents and related products of a double-zone peripheral defocusing frame spectacle lens are seen on the market, and a peripheral defocusing spectacle lens with wide visual field, comfortable wearing and good curative effect is created, which is still one of the technical problems that success is not achieved all the time.

Disclosure of Invention

The invention aims to provide a peripheral defocused frame spectacle lens with wide visual field, comfortable wearing and good curative effect, and further aims to use the spectacle lens in spectacles for correcting peripheral hyperopic defocusing of the nasal retina and the temporal retina and preventing and controlling myopia.

The purpose of the invention is realized by the following technical scheme:

a wide-field near-sightedness peripheral out-of-focus spectacle lens is a frame dioptric spectacle lens and is hereinafter referred to as the spectacle lens. The spectacle lens is a local double-area peripheral out-of-focus lens for correcting hyperopic out-of-focus at the periphery of temporal retina and nasal retina, and the mirror visual field is provided with a central optical area, a nasal functional area, a temporal functional area and a gradual change area.

The central optical zone is a visual optical field of vision for correcting the myopic defocus of the central retina, is symmetrically arranged in an upper area of an axis of 270-90 degrees along a vertical radial line of the optical center, and is provided with an upper sector zone, a middle part and a lower sector zone. The upper sector area is an upward opening angle and is positioned in the area of 195-345 degrees of clockwise axial position and 60-150 degrees of circumferential azimuth angle at the peripheral part of the mirror surface, two arcs in the middle part are inward arcs which are concave towards the optical center or outward arcs which are convex outwards, and the lower sector area is a downward opening angle and is positioned in the area of 30-150 degrees of clockwise axial position and 20-120 degrees of circumferential azimuth angle at the peripheral part of the mirror surface. The length of the vertical radial line of the central optical area is 70 mm-76 mm, the length of the horizontal radial line of the middle part along the optical center is 10 mm-40 mm, and the central optical area continuously and uninterruptedly penetrates through the mirror surface view fields of the upper fan-shaped area, the middle part and the lower fan-shaped area to be prepared into a plano lens or a concave lens with the same diopter.

The nasal functional area and the temporal functional area respectively correct corresponding temporal retina and peripheral hyperopic defocus of the nasal retina. The nasal functional zone and the temporal functional zone are symmetrically arranged in the upper area of a 180-360 DEG axial position along the horizontal radial line of the optical center, the nasal side of the middle part of the central optical zone and the peripheral parts of the temporal side lens, the nasal functional zone is arranged in the area of 300-60 DEG clockwise axial position and 80-120 DEG circumferential azimuth angle at the peripheral parts of the mirror surface, and the temporal functional zone is arranged in the area of 120-240 DEG clockwise axial position and 80-120 DEG circumferential azimuth angle at the peripheral parts of the mirror surface. The nasal functional area and the temporal functional area at least occupy an area with a circumferential azimuth angle of not less than 90 degrees from an optical center by 15 to 20mm, and at least a plain lens or a concave lens or a convex lens having a power difference of +1.00DS to +3.00DS with respect to the power of the central optical area is prepared.

Preparing a gradual change area with the increment of +0.25DS to +0.50DS between the central optical area and the nasal side functional area and the temporal side functional area, wherein the width of the gradual change area is more than or equal to 5mm, and completely mixing the central optical area into the nasal side functional area and the temporal side functional area.

The prepared spectacle lens is of a symmetrical application type, is not divided into a left side and a right side, and can be randomly arranged in a spectacle frame on the left side or the right side.

Such spectacle lenses are preferably arranged: the middle part of the central optical area has a horizontal radial line length of 15-30 mm along the optical center, the upper fan-shaped area is positioned in the region of 210-330 degrees of clockwise axial position and 90-120 degrees of circumferential azimuth angle at the peripheral part of the mirror surface, and the lower fan-shaped area is positioned in the region of 45-135 degrees of clockwise axial position and 30-90 degrees of circumferential azimuth angle at the peripheral part of the mirror surface. The circumference azimuth angle of the upper side sector area is larger than the circumference azimuth angle of the lower side sector area, the length of a horizontal radial line which is 5 mm-8 mm below the optical center is 10 mm-15 mm, the horizontal radial line along the optical center is used as a reference line, the area of the upper side sector area is larger than the area of the lower side sector area, the arc length and the chord length of the upper side sector area are larger than the arc length and the chord length of the lower side sector area, and the optical center of the central optical area is positioned above the geometric center of the mirror surface or is positioned 5 mm-8 mm above the geometric center of.

The nasal functional area is located in the area with the clockwise axial position of 310-50 degrees and the circumferential azimuth angle of 90-100 degrees at the peripheral part of the mirror surface, the temporal functional area is located in the area with the clockwise axial position of 130-230 degrees and the circumferential azimuth angle of 90-100 degrees at the peripheral part of the mirror surface, the shapes of the nasal functional area and the temporal functional area are symmetrical and the circumferential azimuth angle, the arc length and the chord length are equal. The upper sector area is more than or equal to the temporal functional area and the lower sector area; the temporal functional area and the nasal functional area are more than or equal to the upper sector area and the lower sector area, and the area of the central optical area is more than the sum of the areas of the nasal functional area and the temporal functional area. The nasal functional area and the temporal functional area are set to be symmetrical vertical ellipses, and the refractive power of the nasal functional area and the temporal functional area is prepared according to the corresponding refractive power of the periphery of the temporal retina and the nasal retina.

The preparation method of the hard optical frame lens of the spectacle lens comprises the following steps: the outer mirror surface and the inner mirror surface of the spectacle lens are prepared into aspheric surfaces, the inner mirror surface is prepared by adopting a numerical control lens milling lathe and carrying out the working procedures of milling, grinding, polishing, surface shape measurement and correction grinding, the optical point position density of single-point milling is accurate to 0.1 mu m, the shape accuracy of an optical free-form surface is mu m, the surface accuracy is nm, and the luminosity accuracy is 0.01 DS.

The hard optical frame lens is a synthetic lens containing a blue light absorbent and a violet light absorbent, or a coated lens with a blue light-proof and violet light-proof radiation film layer plated on the surface of the lens.

The shape position of a central optical area and the length of a horizontal diameter line of the central optical area are printed on the mirror surface of the hard optical frame lens by using laser, and the shape position of a lens-fitting + character, an upper visual area, a horizontal marking line, the shape position of the central optical area, a binocular symmetric lens, a right lens and a left lens are printed on the surface of the hard optical frame lens, so that the temporary shape marks of the lens can be identified when the lens is customized and assembled.

The hard optical frame lens can also be prepared into an asymmetric spectacle lens, and the sector area at the lower side of the central optical area of the right spectacle lens and the left spectacle lens is inwards moved to the nasal side by an area of 2-5 degrees.

The preparation method of the pressing flexible dioptric lens of the spectacle lens comprises the following steps: selecting a soft transparent plastic polymer material, preparing a film-shaped flexible dioptric lens with the thickness of 0.5-2.0 mm by a centrifugal casting method, a cutting and grinding method or a direct die pressing forming method, and preparing flexible epoxy resin glue on a mirror surface pasting surface or performing electrostatic adsorption treatment.

The spectacle lens can also be provided with a central optical area, a nasal side functional area and a temporal side functional area, and a double-area bifocal lens without a gradual change area, wherein the position, the shape, the size and the diopter of each area are unchanged.

The spectacle lens can also be prepared into a partial single-area peripheral defocused lens, the mirror surface visual field is provided with a central optical area, any one area of at least a nasal functional area and a temporal functional area and a gradual change area, the mirror surface visual field area of any one area of the nasal functional area or the temporal functional area is replaced by the central optical area visual field area, and the circumferential azimuth angle of the arranged nasal functional area or temporal functional area is 90-180 degrees.

The spectacle lens nose side functional area is arranged in the area of the mirror surface view field nose side, the nose upper side and the nose lower side, and the temporal side functional area is arranged in the area of the mirror surface view field temporal side, the temporal upper side and the temporal lower side.

The hard optical frame spectacle lens is arranged in a single-layer or double-layer frame spectacle frame, a central optical area is prepared into a plain lens, a nasal side functional area and a temporal side functional area are prepared into spectacle lenses of +1.00 DS- +3.00DS convex lens sheets, and the hard optical frame spectacle lens is arranged in the single-layer spectacle frame and is used for being worn by a child who looks like myopia and slightly looks like myopia by a parent. The central optical area is prepared into a plano lens, the nasal side functional area and the temporal side functional area are prepared into lenses of +1.00 DS- +3.00DS convex lenses, the lenses are arranged in the additional spectacle frames of the double-layer spectacles and are used for being worn by the myopia persons when the myopia persons see near, and the main spectacle frame of the double-layer spectacle frame only mounted with the single concave lens is worn at ordinary times. The central optical area is prepared into a concave lens with-1.00 DS to-8.00 DS, the nasal side functional area and the temporal side functional area are prepared into a flat lens or a convex lens or a concave lens which presents the difference of +1.00DS to +3.00DS relative to the refractive power of the central optical area, and the spectacle lenses are arranged in a single-layer spectacle frame and are worn by a myopic eye when looking far and near. The flexible dioptric lens for pressing of the spectacle lens is adhered to the surface of a hard optical frame lens, the central optical area is prepared into a plain lens, the nasal side functional area and the temporal side functional area are prepared into a flexible dioptric spectacle lens for pressing of a +1.00 DS- +3.00DS convex lens, and the flexible dioptric lens is adhered to the surface of the hard optical frame lens.

A new purpose of spectacle lenses is that the spectacle lenses provided with a central optical area, a nasal functional area, a temporal functional area and a gradual change area are used in the spectacles for correcting corresponding hyperopic defocusing around temporal retina and nasal retina, preventing and treating the growth of myopia eyeballs of children and teenagers and increasing myopia degrees.

Compared with the prior art, the invention has the advantages that:

1. the invention overcomes the technical defects of narrow visual field, ametropia, poor curative effect, dizziness after wearing and the like of the prior full-area and three-area peripheral defocusing spectacle lenses.

2. The invention utilizes a local and regional selective mechanism of retina periphery hyperopic defocus, aims at the temporal retina and the nasal retina periphery hyperopic defocus in a targeted manner, designs the functional zone only in the mirror nasal and temporal visual fields, increases the central optical zone visual field area by 5-6 times, avoids or reduces refractive error, improves the functional zone curative effect, and realizes unified design of the optical zone and the functional zone, thereby meeting the requirements of human eye physiological optical visual field and the peripheral defocus correction zone.

3. The invention is the first international spectacle lens with double-zone peripheral out-of-focus frames, has the technical advantages of wide visual field, comfortable wearing, excellent curative effect and the like, makes positive contribution to human eye health cause, and generates great social and economic benefits.

Drawings

FIG. 1 is a schematic diagram of the division method of the axis of symmetry 4 of the retina around the fundus oculi;

FIG. 2 is a schematic view of mirror perimeter field of view symmetry axis 4 differentiation;

FIG. 3 is a schematic view of an asymmetric ophthalmic lens zone;

FIG. 4 is a radial line illustration of an ophthalmic lens;

FIG. 5 is a schematic axial view of an ophthalmic lens;

FIG. 6 is a schematic diagram illustrating a comparison of the milling field of view of the inner and outer lens surfaces of the eyewear;

FIG. 7 is a schematic view of the inward curve of the central optical zone mid-section of an ophthalmic lens;

FIG. 8 is a schematic view of the outward curve of the intermediate portion of the central optical zone of an ophthalmic lens;

fig. 9 is a schematic view of a bifocal spectacle lens with a nasal functional zone and a temporal functional zone being vertically elliptical;

FIG. 10 is a schematic view of the nasal functional area of the mirror perimeter field of view 8 segmentation method on the nasal area;

FIG. 11 is a schematic view of the nasal functional regions of the mirror surface peripheral field of view 8 segmentation on the nasal side region, the nasal upper region and the nasal lower region;

fig. 12 is a schematic view of an ophthalmic lens contact and overt marking.

In the figure: 1 an eyeglass lens; 2 a central optical zone; 3, a nasal functional area; 4 temporal functional zone; 5 a gradual change area; 6, inward arc; 7, outwards cambered; 8 upper sector; 9 lower side sector; 10 plano lenses; 11 a concave lens sheet; 12 a convex lens sheet; 13 eyeball; 14 outer mirror surface; 15 inner mirror surface; 16 outer specular central optical zone field of view; 17 scope central optical zone view; 18, the lower fan-shaped area moves inwards towards the nose side, and 19 is vertically elliptical; 20 arc length; 21 chord length; 22: matching lenses and characters; 23: an upper viewing zone; 24: horizontal marking; 25: a central optical zone shape location; 26: the horizontal diameter length of the central optical zone; 27: a binocular symmetric type eyeglass lens; 28: a right eyeglass lens; 29: a left eye lens.

Fundus retina partition notation: CR: central retinas (center retinas); SR: superior retinas (superior retina); IR: lower retina (afferior retina); NR: the paranasal retina (nasal retina); TR: temporal retinas (temporal retinas).

Lens zone, radial line symbols of the lens 4 differentiation method: CV: central vision (center vision); SV: upper viewing zone (super vision); IV: lower visual zone (afferior vision); NV: the nasal area (nasal vision); TV: temporal lateral vision (temporal vision); HM: horizontal radial lines (horizontal meridians); VM: vertical diameter line (vertical meridian).

Lens zone symbol of the lens 8 discrimination method: CL: central area (center Local); and (2) SCL: central upper region (super or center Local); ICL: central inferior region (inner center Local); NL: nasal area (nasal Local); SNL: the superior nasal area (superior nasal Local); INL: the inferior nasal area (affeior nasal Local); TL: temporal region (temporal Local); STL: temporal upper region (temporal Local); ITL: temporal subventricular local.

Detailed Description

The term meaning in this specification:

the peripheral relative refraction (RPR) refers to the refractive state of each peripheral visual field angle of the retina relative to the fovea, i.e. the difference between the equivalent spherical power of each peripheral visual field angle and the fovea. The relative inflection of the retina periphery in each quadrant is as follows: the superior peripheral retinal refraction (SR-RPR), the inferior peripheral retinal refraction (IR-RPR), the nasal peripheral retinal refraction (NR-RPR), the temporal peripheral retinal refraction (TR-RPR), the horizontal radial peripheral retinal refraction (HM-RPR) including TR-RPR and NR-RPR, and the vertical radial peripheral retinal refraction (VM-RPR) including SR-RPR and IR-RPR.

Retinal defocus refers to light rays not focused on the retina, and is divided into central retinal defocus and peripheral retinal defocus, and defocus is further divided into front defocus and rear defocus, wherein the front defocus refers to light rays focused in front of the retina and is also called myopic defocus, and the rear defocus refers to light rays focused behind the retina and is also called hyperopic defocus.

The spectacle lens is a lens blank or a lens arranged in a spectacle frame, or a pressing flexible dioptric lens adhered to the surface of the spectacle lens of the frame. The outermost side mirror surface of the spectacle lens is an outer mirror surface, and the side mirror surface close to the eyes is an inner mirror surface. The spectacle lens frame is classified into a resin spectacle lens and a glass spectacle lens, and a resin spectacle lens is preferably selected. The central optical area of the spectacle lens can be prepared into aspheric lenses with different refractive indexes, diopter numbers, spherical surfaces or aspheric surfaces, and the aspheric lens with the refractive index of 1.56 is preferably selected, so that the lens surface is clearer, easier and more natural.

The frame spectacle lens can be arranged in a single-layer spectacle frame, an additional spectacle frame of a double-layer spectacle frame and a main spectacle frame of the double-layer spectacle frame, and the press-pasting flexible dioptric lens can be pasted on the frame spectacle lens. The double-layer spectacle frame is selected from a clamp ring type, a folding type, a screw type, a hook type, a clamping piece type or a magnet adsorption type, preferably the magnet adsorption type, and is more suitable for children to wear.

The ophthalmic lens zones, radii, axes, azimuths, shapes, sizes and radii of curvature of the present invention are described in further detail below with reference to the accompanying drawings:

a wide field of view myopic peripheral out-of-focus ophthalmic lens, hereinafter referred to as such lens. The spectacle lens is a hard optical frame spectacle lens, is also a flexible dioptric lens pasted on the surface of the hard optical frame spectacle lens, is a lens which has local and regional selectivity and can directly correct the hyperopic defocusing around the temporal retina and the nasal retina in a targeted manner, and is called a local double-region peripheral defocusing spectacle lens.

The preparation technology of the Press-fit flexible dioptric lens (Press-on lens), also called Fresnel lens (Fresnel lens) of the spectacle lens adopts Chinese patent, patent name: a contact lens for correcting peripheral defocus of retina, patent no: 2013100505942, respectively; the patent name: a full out-of-focus press-fit lens, patent No.: 201302263613.

the preparation method of the pressure-pasting flexible dioptric lens comprises the following steps: is selected from soft transparent plastic polymers as the material for pressing the flexible refractive lens, and the plastic is also called plastic. One or more selected from polycarbonate, polyimide, polyethylene, polyvinyl alcohol, polystyrene, polyvinyl chloride, polypropylene, polyurethane, polytetrafluoroethylene, polyhydroxyethyl acrylate, polymethyl methacrylate, glycerol methacrylate, and a homopolymer of cyclohexyl methacrylate, acrylamide, polystyrene-methyl methacrylate, propylene-styrene, polyethylene terephthalate, polyethylene naphthalate, and vinyl pyrrolidone are used as the flexible refractive lens material for the press fit. Preferably polyvinyl alcohol, polyurethane and polyvinyl chloride. The film-shaped flexible dioptric lens with the thickness of 0.5 mm-2.0 mm is prepared by a centrifugal casting method, a cutting grinding method or a direct compression molding method, and the thickness is preferably 1.0 mm. The flexible diopter lens is pressed and pasted to be prepared into a diameter of 70 mm-76 mm so as to be suitable for pasting frame spectacle lenses with different diameters, and the mark of the flexible diopter lens is the same as that of a hard optical frame spectacle lens, so that the flexible diopter lens is convenient to cut.

The mirror surface of one side of the flexible diopter lens is pressed and pasted on the back surface or the front surface of the hard optical frame lens, preferably the back surface after being prepared with flexible epoxy resin glue or being processed by electrostatic adsorption. The electrostatic adsorption treatment technology is the prior art, also called corona treatment, and utilizes high-frequency high-voltage to carry out corona discharge on the surface of the treated plastic so as to increase the higher adhesiveness of the surface, and the prior corona treatment machine can be used for treatment.

The hard optical frame spectacle lens (1) is prepared by adopting the existing lens processing technology. The outer (14) and inner (15) surfaces of the spectacle lens (1) are aspherical. The inner mirror surface (15) is prepared by adopting modern numerical control lens processing equipment, such as a Germany Satisloh, Schneider and Optotech numerical control milling lathe, and carrying out the working procedures of milling, grinding, polishing, surface shape measurement and correction grinding, wherein the optical point position density of single-point milling is accurate to 0.1 mu m, the shape accuracy of an optical free-form surface is mu m, the surface accuracy is nm, and the luminosity accuracy is 0.01 DS. In comparison with milling of the central optical zone (2) of the same size, the visual field (17) of the inner lens surface central optical zone is 30% wider than the visual field (16) of the outer lens surface central optical zone (as shown in fig. 6), and the visual field is wider and more comfortable to wear.

The spectacle lens (1) can also be prepared into a radiation-proof peripheral out-of-focus lens which is a synthetic lens containing a blue light absorbent and a violet light absorbent, or a coated lens with a blue light-proof and violet light-proof radiation film layer coated on the surface of the spectacle lens (1). The blue light absorber is one or more of acrylate, methacrylate, acrylamide, methacrylamide, maleate and styrene, and the purple light absorber is one or more of UV-234, UV-326, UV-327, UV-328, UV-329, UV-400, UV-531 and UV-P. The blue-light-proof and purple-light-proof film layer is one or more than one of a titanium dioxide layer, an aluminum oxide layer, an indium tin oxide layer, a magnesium oxide layer, a silicon dioxide layer, a tetraethoxysilane layer, an oxalic acid diethyl ester layer, a magnesium fluoride layer, a copper propyl layer, a zirconium dioxide layer, a nickel oxide layer and a tungsten oxide layer, and 7-24 coating films are alternately laminated. With the wide popularization and application of mobile phones and computers, especially more popularization of children and teenagers, the blue light radiation generated by the electronic screen can cause xerophthalmia and computer video terminal syndrome. The radiation-proof peripheral out-of-focus spectacle lens (1) is more suitable for children and teenagers with myopia, achieves the double effects of correcting the peripheral hyperopic out-of-focus of retina and radiation-proof, and has the advantages of one lens, double effects and synchronous treatment.

The preparation method of the spectacle lens (1) comprises the following steps: firstly, a central optical area (2), a nasal side functional area (3), a temporal side functional area (4) and a gradual change area (5) are arranged on a mirror surface view field. The optical area and the functional area of the mirror surface field of view are in close relation with the corresponding refraction of the fundus retina, so the fundus and the mirror surface are designed in a partition mode. The international ocular fundus normative division method is divided into a four-division method and an eight-division method according to the peripheral region of retina, wherein the four-division method is the most classical symmetrical axis division method and is also the most common division method.

A four-division method: the division line of the symmetry axis (axis of symmetry) is an imaginary line, the axis of symmetry of the imaginary simulation is based on the 315-135 degree axis and the 225-45 degree axis, the two axes are intersected with the center of the retina area and the optical center of the mirror visual field, and the two axes divide the retina of the eye into four symmetrical fan-shaped areas of a Central Retina (CR) and a peripheral retina which are positioned in a central circular area. The four sector areas are respectively: the Superior (SR), Inferior (IR), Nasal (NR) and Temporal (TR) retinas (fig. 1). The specular vision field also defines a circular central vision region (CV) at the optical center and four upper vision regions (SV), nasal vision region (NV), lower vision region (IV) and temporal vision region (TV) which are arranged in a limited manner at the periphery (see fig. 2). Four symmetrical sector areas are defined as a circle surrounded by two radii and a segment of arc sectioned by the radii, and are named as a fan. According to the principle that the retinas refracted by the lens correspond to each other, a round central vision area (CV) of the mirror surface corresponds to the Central Retina (CR), an upper vision area (SV) at the peripheral part of the mirror surface corresponds to the lower side retina (IR), a nasal side vision area (NV) of the mirror surface corresponds to the temporal side retina (TR), a lower vision area (IV) of the mirror surface corresponds to the upper Side Retina (SR), and a temporal side vision area (TV) of the mirror surface corresponds to the nasal side retina (NR). In design, in order to arrange the central optical area (2) with different sizes or the nasal side functional area (3) and the temporal side functional area (4) with different sizes, the circumferential azimuth angles of the areas can be changed and different opening angle sectors are arranged. If the opening angle of the upper visual area (SV) is increased and the opening angle of the lower visual area (IV) is decreased, the upper visual area (SV) is designed to be a large opening angle sector and the lower visual area (IV) is designed to be a small opening angle sector.

Eight-division method: the mirror surface is divided into examples, two vertical lines and two horizontal lines are crossed with each other, the optical center of the visual field is arranged in the crossing center, a square central area (CL) located in the center is divided, and the upper side, the lower side, the nasal side and the temporal side of the square central area are respectively 8 areas of a central upper area (SCL), a central lower area (ICL), a nasal side area (NL), a nasal side upper area (SNL), a nasal side lower area (INL), a temporal side area (TL), a temporal side upper area (STL) and a temporal side lower area (ITL).

In order to enable the central optical area (2), the nasal side functional area (3) and the temporal side functional area (4) arranged on the mirror surface visual field to be closer to the fundus retina subareas, the central visual area (CV) circle of the four-division method of the mirror surface visual field can be designed to be 10 mm-40 mm in diameter, and the square of the central area (CL) of the eight-division method of the mirror surface visual field can be designed to be 10 mm-40 mm in side length. Then, a central optical area (2), a nasal functional area (3) and a temporal functional area (4) are directly arranged on the designed four-division mirror surface (as shown in figure 3), or the central optical area (2), the nasal functional area (3) and the temporal functional area (4) are arranged on the eight-division mirror surface (as shown in figure 10) and (as shown in figure 11).

The central optical area (2), the nasal side functional area (3) and the temporal side functional area (4) are arranged, and the position, the shape and the size of the optical area and the functional area are adjusted by means of a horizontal radial line (HM) and a vertical radial line (VM) (as shown in figure 4) and an axial position and an azimuth angle (as shown in figure 5). The axial position of the spectacle lens is a distribution axial position of 360 degrees clockwise from the horizontal position of the right side of the spectacle lens of 0 degree, and the azimuth angle of the spectacle lens is an included angle of two axial positions clockwise of the spectacle lens.

The arrangement of the central optical zone (2), the nasal functional zone (3), the temporal functional zone (4) and the transition zone (5) is described in more detail below:

the central optical zone (2) is a visual optical field for correcting the myopic defocus of the Central Retina (CR), and aims to ensure the visual field range of the central vision, especially to ensure the upward, horizontal and downward watching ranges, so that the mirror optical zone can better meet the physiological optical requirements of human eyes, and the technical defects of low wearing compliance, easy dizziness and the like caused by 'tubular visual field' of the peripheral defocused spectacle lenses in the whole zone are overcome and eliminated. The central optical zone (2) is symmetrically disposed in an upper region along a vertical diametrical line (VM) (270 ° -90 ° axis) of the optical center, with an upper sector (8), a middle portion and a lower sector (9) region. The upper sector area (8) is an upward opening angle and is positioned in the area of 195-345 degrees and 60-150 degrees of circumferential azimuth angle of the clockwise axial position at the peripheral part of the mirror surface, two arcs at the middle part are inward arcs (6) (shown in figure 7) which are concave towards the optical center or outward arcs (7) (shown in figure 8) which are convex outwards, and the lower sector area (9) is a downward opening angle and is positioned in the area of 30-150 degrees and 20-120 degrees of circumferential azimuth angle of the clockwise axial position at the peripheral part of the mirror surface. The length of the vertical diameter line (VM) of the central optical area (2) is 70mm to 76mm, and the length of the vertical diameter line (VM) is the diameter of the spectacle lens (1). The length of a horizontal radial line (HM) of the middle part along the optical center is 10 mm-40 mm, the length of the horizontal radial line (HM) has importance in designing the spectacle lens (1), the length of the horizontal radial line (HM) is the axial visual field range of the central optical area (2), the distance between the temporal functional area (4) and the nasal functional area (3) and the optical center, and the horizontal radial line (HM) is too short, so that the visual field range of the central vision is too small; the overlong horizontal radial line (HM) makes the range of the functional area too small, and affects the effect of the functional area. The central optical zone (2) continuously and uninterruptedly penetrates through the mirror surface view fields of the upper sector (8), the middle part and the lower sector (9). The central optical zone (2) is prepared as either a plano lens (10) or a concave lens (11) of the same diopter to be selected for customization and assembly of the glasses. The central optical zone (2) is prepared as a plano lens (10) intended to be worn by a child with emmetropia or mild myopia near sightedness or customized as a spectacle lens for an add-on spectacle frame.

The nose side functional area (3) and the temporal side functional area (4) are arranged to respectively correct peripheral hyperopic defocus of the corresponding Temporal (TR) and Nose (NR) retinas. The nasal functional area (3) and the temporal functional area (4) are symmetrically arranged on a horizontal radial line (HM) along the optical center, namely, an area above an axis of 180-360 degrees is arranged on the nasal side and the temporal side of the middle part of the central optical area (2). The nose side functional zone (3) is arranged in the area of 300-60 degrees of clockwise axial position and 80-120 degrees of circumferential azimuth angle at the peripheral part of the mirror surface, and the temporal side functional zone (4) is arranged in the area of 120-240 degrees of clockwise axial position and 80-120 degrees of circumferential azimuth angle at the peripheral part of the mirror surface. In order to ensure that the functional area can have enough correction area and enough correction degree, the nasal side functional area (3) and the temporal side functional area (4) must guarantee the following three indexes in design: one is as follows: at least 15mm to 20mm from the optical center; the other one is that: at least occupies the area with the circumferential azimuth angle more than or equal to 90 degrees; still another is: at least a plain lens (10), a concave lens (11) or a convex lens (12) having a power difference of +1.009S to +3.00DS with respect to the power of the central optical zone (2) is prepared, and the power difference is preferably +1.50DS to +2.00 DS. Only when the functional zone reaches a sufficient area and a sufficient refractive power, the functional zone can have a curative effect. The functional area is closely related to the distance from the optical center, with distances of 15mm to 20mm from the optical center also being understood as the optical zone radius, where the radius is referred to as the middle portion of the central optical zone (2) because the central optical zone (2) is vertically radial. The functional area is set as a key technology of the invention, the functional area is too large, the effective visual field area of the optical area is influenced, the technical defect that the visual field of the peripheral out-of-focus spectacle lens in the whole area is narrow can not be overcome, the functional area is too small, the treatment effect of the functional area can not be achieved, and the other important setting is to symmetrically set the functional area in the upper area of the horizontal radial line (HM), namely, the functional area is symmetrically distributed up and down by taking the horizontal radial line (HM) as the center.

The nose side functional area (3) and the temporal side functional area (4) are prepared above a horizontal radial line (HM), and the ring height and the pupil height of the preset glasses are also shortened. Peripheral out-of-focus ophthalmic lenses are primarily intended for children and adolescents, and are worn at this age with smaller frames than for adults. The Zeiss Chengnie spectacle lens requires a pupil height of 24mm, and according to a pupil height calculation formula: pupil Height (PH) ═ X-34)/2+ 22. The rim of the zeiss changle pre-customized eyeglass frame was calculated to be 38 mm. The preset spectacle frame of the peripheral out-of-focus spectacle lens can shorten the lens ring by 2mm to 4 mm.

A gradual change area (5) with the increment of +0.25DS to +0.50DS is prepared between the central optical area (2) and the nasal side functional area (3) and the temporal side functional area (4), the width of the gradual change area (5) is more than or equal to 5mm, and the central optical area (2) is completely mixed into the nasal side functional area (3) and the temporal side functional area (4). The gradual change amount of the gradual change area (5) is gradually increased in gradient, and the gradual change area (5) is designed to eliminate lens aberration and lens jumping between the central optical area (2) and the functional area and ensure that the lens is more attractive. The functional area can also be completely prepared as a transition area (5) without losing the effect of the functional area. Another important purpose of the progressive zone (5) is to adjust the distance between the central optical zone (2) and the nasal (3) or temporal (4) functional zone. The horizontal radial line (HM) of the central optical area (2) is longer, and the width of the gradient area (5) can be properly shortened when the gradient area is far away from the optical center. The horizontal radial line (HM) of the central optical area (2) is shorter, the gradual change area (5) can be arranged closer to the optical center, the width is properly widened, and the distance between the central optical area (2) and the nasal side functional area (3) or the temporal side functional area (4) is adjusted by depending on the width of the gradual change area (5), so that the functional area can reach the aim of being at least 15-20 mm away from the optical center.

The spectacle lens (1) is preferably prepared into a symmetrical application type, is not divided into a left side and a right side, and can be freely arranged in a left side or right side spectacle frame. The spectacle lens (1) can also be prepared into an asymmetric type, and the sector (9) at the lower side of the central optical area (2) of the right spectacle lens (R) and the left spectacle lens (L) is inwards moved to the nasal side by an area (18) of 2-5 degrees (as shown in figure 3). Usually, the circumferential azimuth angle of the lower side sector (9) of the spectacle lens (1) is set to be between 25 degrees and 30 degrees, so that the near vision field requirement can be met, and the spectacle lens is more convenient to customize and assemble due to the symmetrical application.

In the preparation process of the spectacle lens (1), the central optical area (2), the nasal side functional area (3) and the temporal side functional area (4) are preferably designed as follows:

the length of a horizontal radial line (HM) in the middle part of a central optical area (2) of the spectacle lens (1) along the optical center is 15 mm-30 mm, the length of the horizontal radial line (HM) can be imagined as the diameter of the middle part of the spectacle lens, the area is equivalent to the direct vision or central axis vision range of human eyes, and the length of the horizontal radial line (HM) in the middle part is 15 mm-30 mm, so that the spectacle lens can meet the requirement of the physiological optical visual field of human eyes. The upper fan-shaped zone (8) is positioned in the region of the peripheral part of the mirror surface at the clockwise axial position of 210-330 degrees and the circumferential azimuth angle of 90-120 degrees, and the lower fan-shaped zone (9) is positioned in the region of the peripheral part of the mirror surface at the clockwise axial position of 45-135 degrees and the circumferential azimuth angle of 30-90 degrees. The circumferential azimuth angle of the upper sector (8) is larger than that of the lower sector (9), so that the human eyes have a larger upward gaze angle, and the human eyes are more in line with the physiological and optical requirements of the human eyes, particularly the dynamic visual field range requirement of the human eyes. The length of a horizontal radial line (HM) which is 5 mm-8 mm below an optical center is set to be 10 mm-15 mm, the visual field range of human eyes is relatively small when the human eyes are gazed and moved from far to near, the area is just the area where the optical area is connected with the functional area, the horizontal radial line (HV) of the area is set to be shorter than the horizontal radial line (HV) of other areas of the central optical area (2), so that the diameter of the horizontal radial line (HM) of the area is properly shortened as much as possible under the premise of meeting the physiological optical requirements, and the horizontal radial line (HV) is properly shortened, so that the problem of mutual contradiction of the areas between the optical area and the functional area can be well solved. The horizontal radial line (HV) along the optical center is taken as a datum line, the area of the upper fan-shaped area (8) is larger than that of the lower fan-shaped area (9), the arc length (20) and the chord length (21) of the upper fan-shaped area (8) are larger than those of the lower fan-shaped area (9), and the arrangement aims to relatively enlarge the opening angle and the area of the upper fan-shaped area (8) so as to adapt to the requirement of a large physiological optical view field of far vision, upward and horizontal fixation of human eyes. The optical center of the central optical area (2) is positioned above the geometric center of the mirror surface or positioned 5 mm-8 mm above the geometric center of the mirror surface.

The nose side functional zone (3) of the spectacle lens (1) is arranged in the area of the clockwise axial position of 310-50 degrees and the circumferential azimuth angle of 90-100 degrees at the peripheral part of the lens surface, and the temporal side functional zone (4) is arranged in the area of the clockwise axial position of 130-230 degrees and the circumferential azimuth angle of 90-100 degrees at the peripheral part of the lens surface. The circumferential azimuth angles of the nose side functional area (3) and the temporal side functional area (4) can not be lower than 90 degrees in principle, the whole circumferential angle of the lens is 360 degrees, each area is 90 degrees according to a symmetrical axis 4 distinguishing method, and therefore the azimuth angle of the functional area is larger than or equal to 90 degrees, and the correction effect of the functional area can be guaranteed. The circumferential azimuth angles of the nasal functional area (3) and the temporal functional area (4) cannot be lower than 90 degrees calculated according to the retinal peripheral defocus measurement angle. Due to the symmetrical design, the nose side functional area (3) and the temporal side functional area (4) are symmetrical and the same in shape, and the corresponding circumferential azimuth angle, arc length (20) and chord length (21) are also equal. The range of the optical area and the functional area of the lens can be simply and conveniently measured and evaluated through the circumferential azimuth angle, so that the customization and the assembly process of the glasses are convenient to recognize and judge, and the measurement can be simply and conveniently carried out by applying one compass ruler. Circumferential azimuth of lens: the upper sector area (8) is more than or equal to the nasal side functional area (3) ═ temporal side functional area (4) > lower sector area (9); the temporal functional area (4) + the nasal functional area (3) is more than or equal to the upper sector (8) + the lower sector (9). The area of the central optical area (2) is larger than the sum of the areas of the nasal functional area (3) and the temporal functional area (4), and on the premise of ensuring that the functional area has enough correction area, the area of the optical area is designed to be 5-6 times larger than that of the functional area, so that the curative effect of the functional area can still be ensured. The nose side functional area (3) and the temporal side functional area (4) of the spectacle lens (1) can also be provided with a symmetrical vertical ellipse (19) (as shown in fig. 9). The powers of the nasal (3) and temporal (4) functional zones of the spectacle lens (1) can also be prepared according to the peripheral powers measured by the corresponding Temporal (TR) and Nasal (NR) retinas.

Peripheral refractive power measurement: the horizontal radial lines of the central, temporal and nasal retinas at 0 °, 30 °, 40 ° are typically measured at 7 diopters using a windowed visual field infrared autorefractor, for example, model Grandseiko wam-5500. The peripheral out-of-focus spectacle lens (1) is customized according to the actually measured refractive power, although the lens is individualized, the peripheral out-of-focus spectacle lens (1) corrects peripheral hyperopic out-of-focus or artificially forms peripheral myopic out-of-focus, and the curative effect of the functional zone can be achieved as long as the amount is enough or exceeds +0.50 DS- +1.00DS correction. The peripheral out-of-focus ophthalmic lens (1) is customized to the actual measured refractive power, with the aim of also avoiding low amount of correction.

To facilitate lens customization and fitting, the ophthalmic lens (1) is printed with permanent and temporary markings (see fig. 12). And (3) printing a permanent invisible mark of the shape position (25) and the horizontal diameter length (26) of the central optical area by using laser. The temporary shape-displaying marks of a lens-matching + character (22), an upper visual area (23), a horizontal marking line (24), a central optical area shape position (25), binocular symmetric lenses (D) (27), right spectacle lenses (R) (28) and left spectacle lenses (L) (29) are printed on the surface of the glasses for the purpose of recognition during the customization and assembly of the glasses.

The spectacle lens (1) can also be designed as a special type of lens, but still be within the design concept of the invention. The spectacle lens (1) is provided with a central optical area (2), a nasal side functional area (3) and a temporal side functional area (4), and the double-area double-light peripheral out-of-focus lens without a gradual change area (5) has unchanged position, shape, size and diopter of each area, such as: the nose side functional area (3) and the temporal side functional area (4) are arranged into a symmetrical vertical elliptic double-area double-light periphery out-of-focus lens (as shown in figure 9). The main purpose of this design is to simplify the manufacturing process of the transition region (5) and reduce the cost, which is desired to meet the needs of very low consumer population, but the optical field area and the efficacy of the functional region are not reduced. The spectacle lens (1) can also be prepared into a local single-area peripheral defocus lens, the mirror surface visual field is provided with a central optical area (2), optionally at least any one area of a nasal functional area (3) and a temporal functional area (4), and a progressive area (5), the mirror surface visual field area of any one area of the nasal functional area (3) or the temporal functional area (4) is replaced by the central optical area (2), and the circumferential azimuth angle of the arranged nasal functional area (3) or temporal functional area (4) is 90-180 degrees. The eyeballs of the children are induced to grow by retinas of horizontal radial lines, the most important thing is temporal retinal peripheral hyperopic defocus, the functional area is arranged on the nose side functional area (3), corresponding temporal retinal peripheral hyperopic defocus can be corrected, and the spectacle lens (1) is prepared into a more optimal choice of double-area peripheral defocus spectacles according to evaluation on the aspects of the functional area curative effect, lens symmetry balance and the like.

Finally, it is stated that: the spectacle lens (1) is characterized in that a nose side functional area (3) is arranged on the nose side of the mirror view field and further comprises the nose upper side of the nose side and the area below the nose, a temporal side functional area (4) is arranged on the temporal side of the mirror view field and further comprises the temporal upper side of the temporal side and the area below the temporal side. The maximum circumferential orientation angle of the upper sector (8) can be made 150 °, the minimum circumferential orientation angle of the lower sector (9) can be made 20 °, and the minimum circumferential orientation angle of the nasal functional area (3) or temporal functional area (4) cannot be less than 90 °. The central optical area (2), the nasal functional area (3) and the temporal functional area (4) can be designed in a curved shape or in a linear shape, such as a rectangle or an irregular shape, without departing from the concept of the invention.

The invention does not simply adjust the range and the size of the optical area and the functional area of the lens field of view, but the invention can achieve the unified design of the optical area and the functional area through repeated design and adjustment of parameters such as the partition proportion, the shape of each area, the length of a horizontal radial line, the length of a vertical radial line, an axial position, an azimuth angle and the like of the lens field of view by combining the results of clinical test data and combining the repeated design and adjustment, and the invention is unique design and scientific design, is not a general technical choice in the technical field and is not obvious to the technicians in the field.

The invention overcomes the technical defects of narrow visual field, ametropia, poor curative effect, dizziness after wearing and the like of the prior full-area and three-area peripheral out-of-focus frame spectacle lenses. By adopting the latest theory of local and selective mechanisms of retinal peripheral defocus, the functional area is designed in a targeted and selective manner, so that the field area of the central optical area is increased by 5-6 times, and meanwhile, the functional area is ensured to be enough to correct the area, and the device has the technical advantages of wide visual field, comfort in wearing, high compliance, no generation of refraction aberration, exact curative effect, good effect and the like. The double-area wide-view-field myopia peripheral out-of-focus spectacle lens is superior to a full-area or three-area peripheral out-of-focus spectacle lens in the curative effects of the optical view field and the functional area of the spectacle lens, has application prospects and social practicability at home and abroad, and greatly contributes to human society and eye health. The peripheral defocus correction technology of the invention has unexpected technical effects and has prominent substantive characteristics and remarkable progress.

The following are further detailed descriptions of the specific parameters of lens design, the type of clinically applied lens, the verification of the optical zone area of the lens, the observation of clinical efficacy and the comparative test of clinical efficacy:

firstly, designing an eyeglass: the diameter of the spectacle lens is 70mm, the central part of the central optical area is prepared into the length of 10 mm-40 mm along the horizontal radial line of the optical center, the upper side sector area is prepared into the circumferential azimuth angle of 115 degrees, the lower side sector area is prepared into the circumferential azimuth angle of 45 degrees, the central optical area is prepared into 0.00DS plano-optic lens to-8.00 DS concave lens, the diopter change gradient of the lens is-0.25 DS, and a composite cylindrical lens can be prepared for the astigmatism patient to customize. The width of the progressive zone is prepared to be 5mm to 15mm, and the progressive zone is prepared starting from the outer edge of the central optical zone, and the gradient of the dioptric power of the progressive zone is +0.25 DS. The nasal side functional zone and the temporal side functional zone were each prepared as a plain lens, a concave lens, and a convex lens, each having a circumferential azimuth angle of 100 degrees and a power difference of +2.00DS relative to the power of the central optical zone, from 20mm from the optical center to 70mm from the lens edge.

II, clinical lens type: 1. the popular type is that: the central optical area is prepared into a plain lens, the nasal side functional area and the temporal side functional area are prepared into lenses of +1.50DS convex lenses, and the lenses are arranged in a single-layer spectacle frame and are used for being worn by a child with emmetropia and mild myopia when the child looks near. 2. The near-use radiation protection popular type: the near-use popular type is prepared into the radiation-proof spectacle lens which is used for wearing when looking at electronic screens of computers, mobile phones and the like. 3. An additional glasses type: the central optical area is prepared into a plain lens, the nasal side functional area and the temporal side functional area are prepared into lenses of +1.50DS convex lenses, the lenses are arranged in the additional spectacle frames of the double-layer spectacles, the single concave lenses are arranged on the main spectacle frame of the double-layer spectacle frame, and the additional spectacle frame is arranged on the main spectacle frame when the user looks near. 4. General type: the central optical area is prepared into a concave lens with-1.00 DS to-8.00 DS, the nasal side functional area and the temporal side functional area are prepared into spectacle lenses which show a difference of +1.50DS relative to the diopter number of the central optical area, and the spectacle lenses are arranged in a single-layer spectacle frame and are used for being worn by a myope during far vision and near vision. 5. Pressing a lens type: the central optical area is prepared into a plain lens, and the nasal side functional area and the temporal side functional area are prepared into a contact lens of a +1.50DS convex lens and are stuck on a common frame lens.

Thirdly, comparing the measurement results of the area of the optical area of the lens: 1. the invention discloses a double-area peripheral out-of-focus spectacle lens: the diameter of the lens is 70mm, the length of the middle part of the central optical area along the horizontal radial line of the optical center is 20mm, the sum of the circumferential azimuths of the upper sector area and the lower sector area is 180 degrees, and the sum of the circumferential azimuths of the nasal functional area and the temporal functional area is 180 degrees. 2. The peripheral out-of-focus spectacle lens (Caisy's Changle lens) of the whole area has the diameter of 70mm, the diameter of 20mm in the central optical area and 360 degrees in the functional area. 3. The calculation method comprises the following steps: the circular area calculation formula: s ═ pi r². Optical zone area calculation results: the invention discloses a double-area peripheral out-of-focus spectacle lens: the area of the central optical zone is the 20mm diameter area of the central optical middle part plus the areas of the two 90-degree sectors; the area of the optical zone of the out-of-focus spectacle lens at the periphery of the whole zone is equal to the area of the central optical zone with the diameter of 20 mm. 4. Optical zone area comparison: the total area of each of the two types of lenses was 3847mm²Wherein: the total area of the central optical area of the double-area peripheral out-of-focus spectacle lens is 2080mm²The total area of the central optical area of the whole area peripheral out-of-focus spectacle lens is 314mm²Original hairThe area of the central optical area of the bright double-area peripheral out-of-focus spectacle lens is 6.625 times larger than that of the optical area of the whole-area peripheral out-of-focus spectacle lens.

Fourthly, observation of clinical curative effect: clinical verification shows that the double-area peripheral out-of-focus spectacle lens has a control development effect on children myopia.

Fifthly, clinical efficacy comparison test: in order to verify the influence of the two-zone peripheral out-of-focus frame spectacle lens, the full-zone peripheral out-of-focus frame spectacle lens and the three-zone peripheral out-of-focus frame spectacle lens on the refractive error, the inventor carries out experimental comparison, and the inventor submits the two-zone peripheral out-of-focus frame spectacle lenses together in the process of observation follow-up and substantial examination.

Finally, it should be clarified that: other variations and modifications of the lens shapes, dimensions described in this specification are possible and are within the scope of the invention.

Claims (10)

1. The utility model provides a peripheral out of focus lens of wide visual field myopia, for frame dioptric lens, its technical characterstic is: the spectacle lens (1) is a local double-area peripheral defocus lens for correcting hyperopic defocus around Temporal Retina (TR) and Nasal Retina (NR), and a mirror visual field is provided with a central optical area (2), a nasal functional area (3), a temporal functional area (4) and a gradual change area (5);

the central optical zone (2) is a visual optical visual field for correcting myopic defocus of the Central Retina (CR), the central optical zone is symmetrically arranged in an upper area of a vertical diameter line (VM) (270-90 degrees of axis) along an optical center and is provided with an upper sector area (8), a middle part and a lower sector area (9), the upper sector area (8) is of an upward opening angle and is positioned in an area of 195-345 degrees of a clockwise axial position and 60-150 degrees of a circumferential azimuth angle at the peripheral part of a mirror surface, two circular arcs of the middle part are inward arcs (6) concave towards the optical center or outward arcs (7) convex outwards, the lower sector area (9) is of a downward opening angle and is positioned in an area of 30-150 degrees of the clockwise axial position and 20-120 degrees of the circumferential azimuth angle at the peripheral part of the mirror surface, the length of the vertical diameter line (VM) of the central optical zone (2) is 70-76 mm, and the length of the horizontal diameter line (HM) of the middle part along, the central optical area (2) continuously and uninterruptedly penetrates through the mirror surface view fields of the upper side sector area (8), the middle part and the lower side sector area (9) and is prepared into a plano lens (10) or a concave lens (11) with the same diopter;

the nasal functional area (3) and the temporal functional area (4) respectively correct corresponding hyperopic defocus around the Temporal Retina (TR) and the Nasal Retina (NR), the nasal functional area (3) and the temporal functional area (4) are symmetrically arranged in the upper area of a horizontal radial line (HM) (180-360 DEG axial position) along the optical center and the nasal side and temporal side lens periphery of the middle part of the central optical area (2), the nasal functional area (3) is arranged in the area of 300-60 DEG clockwise axial position and 80-120 DEG circumferential azimuth angle at the mirror surface periphery, the temporal functional area (4) is arranged in the area of 120-240 DEG clockwise axial position and 80-120 DEG circumferential azimuth angle at the mirror surface periphery, the nasal functional area (3) and the temporal functional area (4) are at least 15-20 mm away from the optical center and occupy at least the area of 90 DEG circumferential azimuth angle, preparing a plain lens (10), a concave lens (11) or a convex lens (12) having a difference of +1.00DS to +3.00DS in relation to at least the power of the central optical zone (2);

preparing a gradual change area (5) with the increment of +0.25DS to +0.50DS between the central optical area (2) and the nasal side functional area (3) and the temporal side functional area (4), wherein the width of the gradual change area (5) is more than or equal to 5mm, and completely mixing the central optical area (2) into the nasal side functional area (3) and the temporal side functional area (4);

the prepared spectacle lens (1) is of a symmetrical application type, is not divided into a left side and a right side, and can be randomly arranged in a spectacle frame on the left side or the right side.

2. The ophthalmic lens of claim 1, wherein: the length of the middle part of the central optical area (2) along the horizontal radial line (HM) of the optical center is 15 mm-30 mm, the upper side sector area (8) is positioned in the area of 210-330 degrees of clockwise axial position and 90-120 degrees of circumferential azimuth angle at the peripheral part of the mirror surface, the lower side sector area (9) is positioned in the area of 45-135 degrees of clockwise axial position and 30-90 degrees of circumferential azimuth angle at the peripheral part of the mirror surface, the circumferential azimuth angle of the upper side sector area (8) is larger than the circumferential azimuth angle of the lower side sector area (9), the length of the horizontal radial line (HM) positioned 5 mm-8 mm below the optical center is 10 mm-15 mm, the horizontal radial line (HV) along the optical center is taken as a datum line, the area of the upper side sector area (8) is larger than the area of the lower side sector area (9), the arc length (20) of the upper side sector area (8), the chord length (21) is larger than, the optical center of the central optical area (2) is positioned above the geometric center of the mirror surface or positioned 5 mm-8 mm above the geometric center of the mirror surface.

3. The ophthalmic lens of claim 1, wherein: the spectacle lens (1) is characterized in that a nose side functional area (3) is located in a region with a circumferential azimuth angle of 90-100 degrees and a clockwise axial position of 310-50 degrees at the periphery of a lens surface, a temporal side functional area (4) is located in a region with a clockwise axial position of 130-230 degrees and a circumferential azimuth angle of 90-100 degrees at the periphery of the lens surface, the shape of the nose side functional area (3) is symmetrical and the shape of the temporal side functional area (4) are the same, the circumferential azimuth angle, the arc length (20) and the chord length (21) are the same, and the circumferential azimuth angle is equal to or more than the upper side sector area (8) and equal to or more than the nose side functional area (3) ═ the temporal side; the power of the nasal functional area (3) and the temporal functional area (4) is prepared according to the corresponding peripheral powers of the Temporal Retina (TR) and the Nasal Retina (NR).

4. The ophthalmic lens of claim 1, wherein: the frame dioptric spectacle lens (1) is a hard optical frame lens, the outer mirror surface (14) and the inner mirror surface (15) of the spectacle lens (1) are prepared into aspheric surfaces, the inner mirror surface (15) is prepared by adopting a numerical control lens milling lathe and carrying out milling, grinding, polishing, surface shape measurement and correction grinding procedures, the optical point position density of single-point milling is accurate to 0.1 mu m, the shape accuracy of an optical free-form surface is mu m, the surface accuracy is nm, and the luminosity accuracy is 0.01 DS;

the hard optical frame lens is a synthetic lens containing a blue light absorbent and a violet light absorbent, or a coated lens with a blue light-proof and violet light-proof radiation film layer plated on the surface of the lens;

the shape position (25) of a central optical area and the length (26) of a horizontal radial line of the central optical area are printed on the mirror surface of the hard optical frame lens by using laser, and a lens-matching + character (22), an upper visual area (23), a horizontal marking line (24), the shape position (25) of the central optical area, binocular symmetric lenses (D) (27), right spectacle lenses (R) (28) and left spectacle lenses (L) (29) are printed on the surface of the hard optical frame lens by using temporary shape-displaying marks so as to be identified when the glasses are customized and assembled;

the hard optical frame lens is an asymmetric spectacle lens (1), and a sector area (9) at the lower side of a central optical area (2) of a right spectacle lens (R) and a left spectacle lens (L) moves inwards to a nose side by an area (18) of 2-5 degrees.

5. The ophthalmic lens of claim 1, wherein: the frame dioptric lens (1) is a press-fit flexible dioptric lens, a flexible transparent plastic polymer material is selected, a thin film flexible dioptric lens with the thickness of 0.5 mm-2.0 mm is prepared by a centrifugal casting method, a cutting grinding method or a direct die pressing forming method, and a flexible epoxy resin adhesive is prepared on a mirror surface pasting surface or is subjected to electrostatic adsorption treatment.

6. The ophthalmic lens of claim 1, wherein: the spectacle lens (1) is provided with a central optical area (2), a nasal side functional area (3) and a temporal side functional area (4), and a double-area double-optical lens without a gradual change area (5), wherein the position, the shape, the size and the diopter of each area are unchanged.

7. The ophthalmic lens of claim 1, wherein: the spectacle lens (1) is a partial single-area peripheral out-of-focus lens, a central optical area (2), optionally at least any one area of a nasal functional area (3) and a temporal functional area (4), and a gradual change area (5) are arranged in a mirror surface view field, the mirror surface view field area of any one area of the nasal functional area (3) or the temporal functional area (4) is replaced by the central optical area (2), and the circumferential azimuth angle of the arranged nasal functional area (3) or temporal functional area (4) is 90-180 degrees.

8. The ophthalmic lens of claim 1, wherein: the spectacle lens (1) is characterized in that the nose side functional area (3) is arranged in the area of the mirror surface view field, the nose upper side and the nose lower side, and the temporal side functional area (4) is arranged in the area of the mirror surface view field, the temporal upper side and the temporal lower side.

9. The ophthalmic lens of claim 1, wherein: the hard optical frame spectacle lens (1) is arranged in a single-layer or double-layer frame spectacle frame, the central optical area (2) is prepared into a plano lens (10), the nasal side functional area (3) and the temporal side functional area (4) are prepared into spectacle lenses (1) of +1.00 DS- +3.00DS convex lens sheets (12), and the hard optical frame spectacle lenses are arranged in the single-layer spectacle frame and are used for being worn by a child who looks near by an emmetropic eye and a mild myopia with a myopic eye on the parent side; the central optical area (2) is prepared into a plain lens (10), the nose side functional area (3) and the temporal side functional area (4) are prepared into spectacle lenses (1) of +1.00 DS- +3.00DS convex lens sheets (12), the spectacle lenses (1) are arranged in the additional spectacle frames of double-layer spectacles and are used for being worn by a myope when the myope looks near, and the spectacle frames are only worn by a double-layer spectacle frame main spectacle frame provided with a single concave lens sheet at ordinary times; the central optical area (2) is prepared into a concave lens sheet (11) with-1.00 DS to-8.00 DS, the nasal side functional area (3) and the temporal side functional area (4) are prepared into a plano lens (10) or a convex lens sheet (12) or a spectacle lens (1) of the concave lens sheet (11) which presents the difference of +1.00DS to +3.00DS relative to the diopter number of the central optical area (2), and the plano lens sheet or the convex lens sheet or the concave lens sheet is arranged in a single-layer spectacle frame and is used for a myopic person to wear when looking far and near; the flexible dioptric lens is pasted on the surface of the hard optical frame lens, the central optical area (2) is prepared into a plain lens (10), the nasal side functional area (3) and the temporal side functional area (4) are prepared into a pasting flexible dioptric lens (1) of a +1.00 DS- +3.00DS convex lens (12), and the pasting flexible dioptric lens is pasted on the surface of the hard optical frame lens.

10. The new use of the spectacle lens is technically characterized in that: the spectacle lens (1) provided with the central optical area (2), the nasal functional area (3), the temporal functional area (4) and the gradual change area (5) is used for correcting corresponding hyperopic defocusing around the Temporal Retina (TR) and the Nasal Retina (NR), preventing and treating myopia eyeball growth of children and teenagers and myopia degree increase.