12 results about "Axial elongation" patented technology

The utility model discloses a lens for delaying eye axis growth by using a negative defocus technology, particularly relates to the field of optical spectacle lenses, and aims to solve the problems that myopia of children and adolescents in China is severe, low-age and severe, existing common methods include angle molding, defocus and foggy vision (point diffusion), and the prevention and control efficiency is declined due to the large use of the methods. According to the utility model, myopia can be better prevented and controlled, and the prevention and control efficiency is improved. A composite ring belt design is adopted, the defocusing amount of an aspheric micro lens in a composite ring belt structure is negative defocusing, and the range of the defocusing amount of the aspheric micro lens is-5.0 D-(-6.5 D). While clear vision correction is ensured in an optical central area, the defocusing amount of a ring belt outside the central area is in an asymptotically increasing trend, so that continuous defocusing is formed in a peripheral area, and the visual acuity is improved. And personalized compensation is carried out on the defocusing amount of the field angle to form a continuous myopia defocusing state, so that excessive increase of the ocular axis and the diopter is delayed, and the purpose of controlling myopia is achieved.

The invention belongs to the technical field of medical equipment, and particularly relates to gradient out-of-focus hyperopia correction glasses and a design method thereof.The gradient out-of-focus hyperopia correction glasses are each provided with a lens structure with three functional partitions, each lens structure comprises a base lens, and the central portion of each base lens is a central correction area; the annular transition stimulation area is located outside the central correction area, and the peripheral strengthening area is located on the outer side of the transition stimulation area. The design of the gradual-change hyperopia defocusing amount conforms to the effect that the hyperopia defocusing amount is increased in a stepped mode due to the fact that the retina form is transited to the peripheral retina from the macular area, and the good vision correction and hyperopia treatment effects are achieved, it is guaranteed that a clear object image is formed in the central area, and amblyopia training of a patient is not affected; a relatively clear central side view field range is provided, and the visual quality is ensured; peripheral retina hyperopia defocus is formed, and eye axis growth and hyperopia degree reduction are promoted.

Disclosed in the present invention is an optical spectacle lens, comprising a lens body, wherein the lens body is provided with an optical central zone, an optical buffer zone and an optical edge zone; the optical central zone is arranged at the center of the lens body, the optical central zone serving the function of vision correction, and the optical central zone being circular or octagonal in shape; the optical buffer zone is formed by providing two or more focal points of asymmetric curvature; and the optical edge zone is configured as the area in the lens body that extends to the edge of the lens body, other than the optical central zone and the optical buffer zone. The present invention has a simple structure and rational design; the overall design makes the contrast of artificial light entering the eyes significantly low, thereby controlling the progression of myopia; moreover, by means of an image point design, an optical path falls in front of the retina, thereby inhibiting ocular axial elongation.

The invention relates to the technical field of prevention and control glasses, in particular to myopia prevention and control glasses capable of preventing axial growth, which comprise glasses frames, an adjusting assembly is arranged outside the glasses frames, the adjusting assembly is used for adjusting the distance between the two glasses frames, a stabilizing assembly is rotatably arranged outside the glasses frames, and glasses legs are arranged at the end parts of the stabilizing assembly. According to the invention, when the extrusion plate is rotated, the extrusion plate is pressed outside the lens body, so that the lens body can be stably mounted outside the auxiliary mounting lens, and when the lens body needs to be replaced after the vision of a wearer is changed, the extrusion plate is rotated in the notch, so that the lens body can be detached and replaced from the auxiliary mounting lens; the outer portions of the protruding blocks are movably connected into the strengthening pieces, when the inserting blocks are inserted into the clamping lock holes through the elastic force of the extrusion springs, the distance between the two glasses frames can be locked, the distance between the lens bodies in the glasses frames is driven to be adjusted by adjusting the distance between the two glasses frames, and the sight distance between the two sides of the strabismus of a wearer is adjusted.

This disclosure pertains to the field of optical devices, specifically relating to eyeglasses, comprising: a frame including a track extending in a predetermined direction; a first stimulation module slidably connected to the track for sliding along the track; the first stimulation module having a first defocus stimulation region; and a second stimulation module slidably connected to the track for sliding along the track; the second stimulation module having a second defocus stimulation region. When the first and second stimulation modules are installed in the same side of the frame, a blank area is formed between the first and second defocus stimulation regions. The first and second stimulation regions correspond to the peripheral field of vision of the human eye, and the blank area corresponds to the central field of vision of the human eye. By sliding the first and second stimulation modules on the track, the positions of the first and second defocus stimulation regions in the field of vision of the human eye are changed, thereby changing the position and extent of the blank area. This is intended to inhibit axial elongation and control the degree of myopia.

This application discloses substances that enhance scleral fatty acid oxidation for the treatment and / or prevention of myopia. This application utilizes substances that enhance scleral fatty acid oxidation, particularly through oral administration of ω-6 polyunsaturated fatty acids (especially linoleic acid) or local ocular injection of ACOX1 or CPT1A gene-overexpressing lentiviruses, to enhance scleral fatty acid oxidation, increase scleral collagen synthesis, thereby controlling scleral remodeling and inhibiting myopic refractive error and axial elongation.

The utility model discloses a point diffusion prism lens composite lens, which relates to the technical field of myopic glasses, and comprises a point diffusion lens and a second lens arranged on the inner side or the outer side of the point diffusion lens, and the second lens is selected from one of a combined prism lens, a progressive lens or a defocus lens. The combined prism lens is formed by combining a prism and a convex lens, and the convex lens is located between the prism and the point diffusion lens. The combined prism lens is wedge-shaped, the thicker end of the combined prism lens is a base, and the thinner end of the combined prism lens is a base top. According to the point diffusion prism lens composite lens, the point diffusion lens is respectively compounded with the combined prism lens, the progressive lens or the out-of-focus lens, so that incident light is scattered, soft optical transition is formed in a peripheral view field, and the design reduces the signal intensity difference between adjacent view cone cells, namely, reduces the contrast ratio; therefore, 'elongation signals' transmitted from the retina to the eyeball are inhibited, and eye axis growth is slowed down.

Lenses based on prism dot diffusion technology to slow axial elongation belong to the field of ophthalmic optical instruments and are used to inhibit axial elongation in myopic patients. They include dual functional areas of prism lenses and dot diffusion spots. The prism lens consists of 1-5 prisms from the base inwards and +1.00D to +3.00D lens units. The functional area is composed of a nano-imprinted dot diffusion array with a dot diffusion diameter of 0.1mm. When working at close range using the prism lens, it is equivalent to telephoto vision of approximately 3 meters, reducing excessive stimulation of the axial length caused by accommodation and eye strain. Simultaneously, the dot diffusion (discrete spot control technology) unit reduces contrast, creating a dynamic spot diffusion effect. This dual effect, combined with the prism lens, provides better inhibition of axial elongation compared to traditional prism lenses.

The utility model relates to a prevention and control lens for delaying myopia degree progress and eye axis growth. The prevention and control lens is provided with a central bright vision area and an out-of-focus signal area on the outer side. An outer side mirror surface of the defocus signal area is divided into an upper side mirror surface area and a lower side mirror surface area which are respectively provided with first micro-lenses which are arranged in a circular mode and second micro-lenses which are arranged in a honeycomb polygon mode, vision in different spatial frequency fields is optimized through the arrangement mode and parameter design, meanwhile, it is guaranteed that the number of the micro-lenses is equal when the micro-lenses rotate downwards in the pupil area, and the visual acuity of the pupil area is improved. And the eye axis is effectively controlled to stretch. The inner mirror surface is provided with a point diffusion structure, so that the problem of reducing the activity of bipolar cells is solved. According to the lens, the wearing stability, the visual effect and the myopia prevention and control effect are improved, and the lens has very high practicability.

The invention discloses a progressive multi-focus lens for controlling eye axis growth. The progressive multi-focus lens comprises a far-use area, a progressive channel and a near-use area which are sequentially arranged in the vertical direction. At least the peripheral area of the lens body is processed by laser to form a plurality of optical scattering microstructure points, and the microstructure points are uniformly distributed on the surface of the lens in an equiangular spiral manner according to a Fermat spiral distribution rule, so that multi-layer and multi-direction optical scattering is formed in the peripheral retina area of a wearer, the peripheral imaging contrast ratio is reduced, and the imaging quality is improved. Excessive growth of the ocular axis can be inhibited, and central vision is kept clear. The invention can be used in the field of juvenile myopia prevention and control.

This disclosure belongs to the field of image display, and specifically relates to an image display method, system, and apparatus. The image display method includes acquiring first color values ​​of predetermined pixels in a presented image. The first color values ​​include attribute values ​​of each primary color based on additive color mixing, wherein each primary color includes at least a first primary color and a second primary color, and the wavelength of the first primary color is at least 50 nm greater than the wavelength of the second primary color. The method also involves adjusting the attribute values ​​of each primary color in the first color values ​​according to an intensity adjustment ratio to obtain second color values ​​for presentation. The difference between the attribute values ​​of the first and second primary colors in the second color values ​​is greater than the difference between the attribute values ​​of the first and second primary colors in the first color values. By presenting the image, axial chromatic aberration is created to generate myopic defocus, thereby suppressing axial elongation of the eye.

The invention discloses a double-sided atomized optical lens for controlling eye axis growth. The lens comprises an optical substrate, a first atomization structure layer is arranged on the outer surface of the optical substrate, and a second atomization structure layer is arranged on the inner surface of the optical substrate. The first atomization structure layer is used for pre-scattering ambient light to reduce glare, and has the characteristics of sparse atomization points, large point diameter and large area of a central non-atomization region; and the second atomization structure layer is used for carrying out main scattering on the imaging light to reduce the contrast ratio of peripheral retinas, and has the characteristics of dense atomization points, relatively small point diameter and small area of a central non-atomization region. The two layers of structural parameters are designed asymmetrically and cooperatively to form a cooperative light path of'pre-scattering first and then main scattering '. According to the method, the eye axis growth is effectively inhibited, the visual comfort is remarkably improved, and the clarity of central vision is better considered.