36 results about "Peripheral retina" patented technology

Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing symmetric or asymmetric optic with aspheric surface which redirects and / or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The intraocular lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the intraocular lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina. One or more surfaces of the intraocular lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.

Optical device (1) for modifying the optics of the eye in its peripheral retina as prophylaxis of the progression of myopia, that it consists in a lens in which its inferior nasal quadrant (2) modifies the strength in a progressive and controlled manner from the center to the outer zone of the lens. The rest of the quadrants (3) of device (1) have a configuration of a graduated crystal or flat crystal, depending, respectively, on whether the user has some visual defect that requires optical correction or lacks said defect. The lens can be either an optical lens, a contact lens or electro-optical systems.

The present application is directed to an eye-wear borne electromagnetic radiation refractive therapy system that may comprise an electromagnetic radiation source comprising a ring of LEDs that directs one of its on axis or off axis electromagnetic radiation to a desired peripheral retina area of a wearer's eye. The system may further comprise batteries for powering the LEDs, an antenna for receiving signals and a processor for controlling the LEDs, wherein the electromagnetic radiation source includes spectral characteristics similar to outdoor light.

A ophthalmic lens for inhibiting progression of myopia includes a central zone and an annular zone. The annular zone includes subsurface optical elements formed via laser-induced changes in refractive index of a material forming the annular zone. The subsurface optical elements are configured to modify distribution of light to the peripheral retina of a user so as to inhibit progression of myopia.

An eye-protective shade for the AR (Augmented Reality) smart glasses is provided, including: an eye protection unit disposed in front of the AR smart glasses, wherein the eye protection unit is disposed with a pair of shading portions capable of filtering light, and the pair of the shading portions respectively correspond to a pair of semitransparent display portions disposed on the AR smart glasses, and the pair of shading portions are made of translucent material and / or opaque material; when reading digital information by use of the eye-protective shade along with the AR smart glasses, the eye-protective shade protects the user's eyeballs and the macula from direct light radiation while the peripheral retina is continuously in contact with external light sources. The present disclosure can change the user's reading habits and moderate visual fatigue when reading.

Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing a dual optic intraocular lens which redirects and / or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The intraocular lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the intraocular lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina. One or more surfaces of the intraocular lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.

A system and method for treating and preventing loss of visual acuity. The system comprises a vision correcting lens, such as a contact lens, having a material with a regular pattern of orientation of polarizable molecular bonds, so as to create a birefringent effect. Off-axis light rays are refracted through the contact lens so as to focus in front of the retina, whereas on-axis light rays pass through the contact lens without refraction, such that their focal point on the fovea is unaltered. In an exemplary embodiment, a contact lens of the present invention is capable of independently altering the refractive state of the eye in relation to fovea and peripheral retina so as to simultaneously correcting visual acuity while minimizing the signal for axial growth and hence myopic progression.

A system for imaging of the central and peripheral retina, includes one of a concave mirror and an elliptical mirror having an axis and being configured to rotate around the axis and a scanner configured to using a spectral domain optical coherence tomography system to obtain a non-contact wide angle OCT-image of a large portion of the central and peripheral retina.

A spatial vision training system can be used for training and protecting eye muscle. The spatial vision training system comprises lighting system, controller and driving circuit. The lighting system is arranged in front of trainee, and generates luminous point as sighting target. The lighting system is electrically connected with the controller. The controller gives off command to the lighting system. The luminous point moves under the action of the controller according to program controlled track for trainee chasing the luminous point and gazing with eyes without moving head. The inventive spatial vision training system can stimulate and exploit peripheral retina and improve its cellular activity and stereovision.

An eye-protective shade for the AR (Augmented Reality) smart glasses is provided, including: an eye protection unit disposed in front of the AR smart glasses, wherein the eye protection unit is disposed with a pair of shading portions capable of filtering light, and the pair of the shading portions respectively correspond to a pair of semitransparent display portions disposed on the AR smart glasses, and the pair of shading portions are made of translucent material and / or opaque material; when reading digital information by use of the eye-protective shade along with the AR smart glasses, the eye-protective shade protects the user's eyeballs and the macula from direct light radiation while the peripheral retina is continuously in contact with external light sources. The present disclosure can change the user's reading habits and moderate visual fatigue when reading.

An eye-wear borne electromagnetic radiation refractive therapy system can comprise an electromagnetic radiation source comprising a ring of LEDs that directs one of its on axis or off axis electromagnetic radiation to a desired peripheral retina area of a wearer's eye; a power source for powering the LEDs, an antenna for receiving signals and a processor for controlling the LEDs; wherein the electromagnetic radiation source includes spectral characteristics similar to outdoor light.

An ophthalmic lens series for reducing the progression of myopia through adequately correcting the peripheral retina, the series comprising more than one ophthalmic lens forming a series. Each ophthalmic lens of the series has a central power level common to the series. Each of the ophthalmic lenses of the series has one differential (peripheral minus central) power level selected from a variety of differential power levels. Providing a variety of differential power levels reduces the risk of over or under-correcting the peripheral retina of a particular eye.

An ophthalmic lens with annular cylindrical microstructures on the surface, within a specific aperture range of the lens, a plurality of annular cylindrical microstructures with different radii take the geometric center of the lens as the center, and are regularly nested and arranged to form a radial array , each annular cylindrical microstructure can produce relatively stable refractive power and higher-order aberrations. The spectacle lens of the present invention has an excellent and stable visual correction effect outside the microstructure distribution area of ​​the annulus cylinder; in the distribution area of ​​the microstructure of the annulus cylinder used for side-viewing, a diameter is introduced for the spectacle-wearing eye. In terms of visual effects, regular astigmatism and irregular astigmatism in the peripheral field of view coexist, and low-order and high-order disturbances of the incident wave surface in the peripheral field of view of the human eye are realized, so that the imaging of the peripheral field of view of the lens decline in quality. The lens is mainly suitable for adolescents with rapid myopia development or hyperopia and defocus around the retina. It can introduce high-order aberrations and myopia defocus along the radial meridian in the peripheral retinal visual field.

The invention relates to a macular foveal myopia therapeutic instrument and a using method thereof. The bottoms of the three lifting shafts are respectively fixedly mounted with a first longitudinal electric push rod, a second longitudinal electric push rod and a third longitudinal electric push rod, a fixed seat fixedly mounted on a bottom plate is disposed on one side of a mobile support platform, a junction box is fixedly mounted on the bottom of the fixed seat, one side of the junction box is connected to an external power line, and the other side of the junction box is respectively connected to a first switch, a second switch, a third switch, and a fourth switch, the first switch is connected to a horizontal electric push rod through a lead, and the second switch is connected to the first longitudinal electric push rod through the lead, the third switch is connected to the second longitudinal electric push rod through the lead, and the fourth switch is connected to the third longitudinal electric push rod through the lead; the image is presented on the peripheral retina, the long-term peripheral retinal vision development can treat myopia, the human resources can be saved, thecontrol efficiency can be improved, and the macular foveal myopia therapeutic instrument has good social and economic benefits.

The invention discloses a mouse model of retinal hemangioma-like hyperplasia and / or retinal capillary hemangioma, which is a gene knockout mouse obtained by crossing Cre mice, Rb floxed mice and Vhl floxed mice. There are a large number of new blood vessels in the peripheral retina of the Rb / Vhl double knockout mouse model of the present invention, and these blood vessels penetrate the whole layer to form a dense capillary network, and lose the normal layered structure of the three-layer retinal vascular network. These phenotypes are more severe than the retinal neovascularization in the state-of-the-art RAP model; Rb / P107 / Vhl TKO mice still exhibit some neovascularization in the peripheral retina, but develop distinct stage III RAP and RCH-like lesions in the subretina .

A system includes a mirror having an axis extending through a central portion thereof, and a portion of the mirror being configured to repeatedly oscillate between a first position and a second position around the axis, so as to record a field of up to 200 degrees of a portion of the central and peripheral retina, a first scanner configured to use a spectral domain optical coherence tomography system to obtain a non-contact wide angle optical coherence tomography-image of the portion of the central and peripheral retina, and a second scanner configured to obtain an image of the retina, wherein the mirror is configured to oscillate so as to move the focal point of the mirror from one side of a pupil to another side, thereby permitting scanning light inside the eye to cover a predetermined peripheral field, thus creating a two dimensional or three dimensional image of the field.

The present invention relates to a method and system for identifying lattice degeneration holes in a wide-area fundus image based on deep learning. The wide-area fundus image is input into a convolutional neural network to determine whether there is a lattice degeneration of the surrounding retina in the wide-area fundus image or not. Hole: when it is judged that there is lattice-like degeneration or hole in the peripheral retina in the wide-area fundus image, the location of the lattice-like degeneration or hole in the wide-area fundus image is located using the significant region algorithm. The invention can assist ophthalmologists to more accurately and conveniently interpret wide-area fundus images of patients.