300 results about "Visual function" patented technology

According to the multi-mode visual stimulation and intelligent self-adaption combined myopia prevention and control system based on the AR glasses, all-weather, personalized and full-scene myopia suppression is realized through multi-module cooperation of sensory visual stimulation, visual function training, AI scene dynamic recognition and directional intervention, self-adaption closed-loop feedback, cloud / offline deployment and the like; through multi-dimensional visual stimulation and real-time physiological monitoring, eye axis growth is accurately regulated and controlled, myopia prevention and control precision is improved, out-of-focus and contrast setting are automatically optimized based on immediate refraction and adjustment feedback, personalized intervention is enhanced, lightweight AI and cloud pre-calculation are introduced, the endurance of equipment is effectively prolonged, an existing AR platform is compatible, the development process is simplified, and the development efficiency is improved. And the user compliance is enhanced.

Methods and apparatus for generative rendering. In some embodiments, an input visual content is operated on by a computational to perform a computer vision function and output generative display content. The generative display content may overlay the input content to be shown on a display system. In some embodiments, the generative display content replaces the video input stream for display.

The invention discloses a hyperspectral data fusion analysis system, belongs to the technical field of remote sensing data processing and artificial intelligence, and provides a multi-level data fusion technology by integrating data management, preprocessing, fusion, modeling and visual function modules through a modular architecture aiming at the problems of an existing system. Machine learning algorithms such as a support vector machine and a random forest are integrated to realize dynamic parameter optimization and model evaluation, spectrum curve dynamic display, classification map rendering and customized analysis report generation functions are provided through an interactive visualization module, and system security and expansibility are enhanced based on hierarchical architecture and database standard design. And multi-source equipment access, user permission grading and data encryption storage are supported. The hyperspectral data processing efficiency, the analysis precision and the system stability are remarkably improved, and the method can be widely applied to the fields of environment monitoring, agricultural remote sensing, target recognition and the like.

The invention discloses a method for establishing an animal model for age-related retinopathy caused by lipid metabolism disorder, and the animal model is obtained by specifically knocking out Lss genes from mouse retinal pigment epithelium (RPE) cells by means of a CRISPR / Cas9 gene editing technology. The age-related retinopathy model mouse constructed by the invention shows a retinopathy phenotype with retinal lipid deposition and reduced visual function at the age of 5 months, and the retinopathy is further aggravated along with the increase of the age of the mouse and is similar to the phenotype of age-related retinopathy related to lipid metabolism disorder clinically; and an ideal and effective animal model is provided for researching age-related retinopathy.

The invention belongs to the technical field of visual training, and particularly relates to a multi-dimensional visual training feedback method for improving binocular fusion visual and stereoscopic visual functions, and the method comprises the following steps: carrying out medical baseline detection, generating an initial ability portrait through visual function evaluation and cognitive ability testing, matching training difficulty parameters, and generating a personalized scheme; multi-modal game training is carried out, training types comprise gamification training, animation scene training and offline family task training, and the training difficulty is dynamically adjusted; a tutor performs remote one-to-one guidance, and dynamically adjusts a training scheme according to a change report by tracking the training progress in real time; and the system performs multi-dimensional effect evaluation and self-optimizes a difficulty prediction algorithm. According to the method, the problems of dull training and passive participation, scheme stiffness and execution deviation, single stimulation and cognitive load, scene limitation and continuous interruption are solved.

The invention discloses a personalized myopia prevention and control visual function training and fatigue evaluation method and system, and belongs to the technical field of visual health. In order to solve the problems of single training mode, inaccurate fatigue evaluation, lack of personalized intervention and the like in the existing myopia prevention and control scheme, the method comprises the following steps of: acquiring facial image data of a user through a built-in camera of equipment, and synchronously acquiring interaction data of finishing a visual function training task by the user; and calculating an eye fatigue degree evaluation value in real time by utilizing a preset evaluation model, and generating a personalized visual rest scheme or a training parameter adjustment strategy in combination with personal historical data of the user. According to the method, multi-modal data fusion analysis is innovatively realized, a closed-loop prevention and control system integrating training, evaluation and intervention is established, and the pertinence, accuracy and user experience of myopia prevention and control are effectively improved.

The invention belongs to the field of visual training, and particularly relates to a multispectral dynamic visual function training system and method. The multispectral dynamic visual function training system comprises an image acquisition module, an intelligent analysis module, a control module, a training execution module and a multispectral light source module, the image acquisition module is arranged at a position corresponding to an eye and is used for acquiring image information near eyeballs of a user, personal information of the user and a vision diagnosis result in real time, and the image information comprises eyeball movement tracks, pupil sizes and forms, cornea edge contours and eye white elastic states; and the intelligent analysis module combines the image information and the acquisition time of the image information. According to the scheme, through collection, analysis, regulation and control of a closed loop, the problems that in the prior art, a real-time analysis mechanism based on eyeball images is lacked, the adaptability of a training scheme and eye dynamic characteristics is weak, and precise regulation and control of functions such as light nutrition supplement and choroid stimulation cannot be achieved are solved; and precise training is also realized, and the effects of prevention and protection, cooperative improvement, compliance improvement and the like are achieved.

The invention relates to the technical field of visual function diagnosis, and provides a visual function examination device based on eye movement tracking, a medium and computer equipment, the device comprises a data acquisition unit, an eye movement evaluation unit, a visual field evaluation unit and a comprehensive analysis unit, the data acquisition unit is used for acquiring visual function data of an examinee, and the comprehensive analysis unit is used for analyzing the visual function data of the examinee; the eye movement evaluation unit evaluates an eye movement function based on eye movement parameters in the visual function data; the visual field evaluation unit evaluates a visual field function based on visual field parameters in the visual function data; according to the application, objective sight drop points are used for replacing subjective keys, false negative and false positive are reduced, before typical defects do not appear in the visual field, early visual function changes can be prompted through eye movement parameter abnormity, auxiliary screening of early glaucoma and other diseases is achieved, and the visual function detection accuracy is improved. Meanwhile, the diagnosis accuracy is improved through double evidences of eye movement and visual field in the middle and late stages, and the sensitivity and specificity of visual function examination are remarkably improved on the whole.

The utility model discloses a turnover mirror for visual function training. The visual training bat comprises a supporting rod, a first connecting block, a second connecting block and a plurality of mirror plates, wherein the first connecting block and the second connecting block are detachably mounted on the supporting rod; the mirror plates are detachably mounted on the first connecting block and the second connecting block respectively; and the plurality of groups of elastic positioning assemblies are respectively arranged on the first connecting block and the second connecting block and are used for elastically clamping the mirror disks. The plurality of mirror discs are detachably mounted on the first connecting block and the second connecting block respectively, so that the mirror discs can be detached and replaced conveniently, the corresponding mirror discs can be directly replaced when the lenses need to be replaced, the process of replacing the lenses is greatly simplified, and even a user without professional knowledge can replace the lenses more quickly; through the arrangement of the elastic positioning assembly, each mirror disc can be elastically clamped on the first connecting block and the second connecting block, the operation is rapid and convenient, and the assembly efficiency is improved.

The invention provides aqueous ophthalmic solutions of phentolamine or pharmaceutically acceptable salts thereof, medical kits, and methods for using such ophthalmic solutions to improve visual performance in a patient. Exemplary aqueous ophthalmic solutions include those containing phentolamine mesylate, mannitol, sodium acetate, and water.

A method for automatically determining multifocal lens parameters associated with a contact lens and a contact lens for correcting ametropia of a patient's eye wherein a personalized multifocal contact lens for treating presbyopia takes into account various related clinical patient measurements including patient clinical data and lifestyle data, to determine which lens is likely to provide personalized lens parameters for new patients. Historical patient clinical data and lifestyle data are used to train the system to predict which multi-focal lenses (i.e., lenses including lens designs and having lens geometries and powers) would result in optimal lens-to-eye fit and optimal visual function for each eye of presbyopia patients.

The invention provides sgRNA for knocking out zebra fish pde6a and application of the sgRNA in visual diseases. According to the sgRNA provided by the invention aiming at a specific position, pde6a of the zebra fish can be knocked out or knocked down in a targeted manner by utilizing a CRISPR / Cas9 system. After pde6a is successfully knocked out or knocked down, a zebra fish model with impaired visual functions and normal retina development is obtained, and the model also has morphological changes such as shorter body length, smaller eyes and shorter inter-ocular distance and also shows a trend of increasing the length of an ocular axis. The zebrafish model provides an experimental tool and a model basis for the research of visual function related diseases.

The present invention provides a pharmaceutical composition for preventing or treating ophthalmic diseases, comprising a nuclear receptor subfamily 2 group F member 1 (NR2F1) inhibitor. The NR2F1 inhibitor of the present invention rejuvenates retinal cells by inhibiting the expression of the NR2F1 gene or the activity of the NR2F1 protein, and thus has the effects of reducing cellular senescence of retinal pigment epithelial cells and restoring visual function.

The invention belongs to the technical field of child visual training, and particularly relates to a child visual function training system and method based on ciliary muscle adjustment. The child visual function training system based on ciliary muscle adjustment comprises a collaborative acquisition module and a dynamic training module. The collaborative acquisition module acquires an anterior segment image of an eyeball in real time through a built-in image acquisition unit so as to identify eye features, acquires extraocular muscle pressure deformation data through a built-in pressure acquisition unit, and then associates and analyzes the eye features and the extraocular muscle pressure deformation data through a built-in data fusion unit; a mapping model is established according to the analysis result, the refractive power change of the crystalline lens is calculated, and the calculation result is processed into the ciliary muscle adjustment amount; the dynamic training module determines training parameters in combination with child individual data and historical data acquired by the collaborative acquisition module, and dynamically adjusts training duration and light wave parameters according to the ciliary muscle adjustment amount, thereby solving the problems of poor child training effect and safety risk in the training process.

The invention discloses a flushing and suction surgical operation device with a visualization function, and relates to the technical field of neurosurgical operation instruments.The flushing and suction surgical operation device with the visualization function comprises a working rod and a handle conforming to ergonomics, a lens seat is embedded in the left end of the working rod, and a visualization assembly is arranged in the working rod; the visual assembly comprises a pushing motor, an image sensor and a camera, the pushing motor adjusts the position of the camera through an electric push rod, it is ensured that a lens and the camera are accurately coaxial, infrared light supplementing blocks in a 15-degree included angle circumferential array are arranged on the outer side of the second lens, the lens is covered with a hydrophobic-wear-resistant composite layer in a protective cover mode, and a suction pipe and a flushing pipe are arranged in a working rod and a handle in a penetrating mode. According to the device, the imaging precision and light supplementing suitability of an operation area are improved, lens cleaning interruption is reduced, the single-hand control core function is achieved, the operation safety and efficiency are enhanced, and the device is suitable for operations in narrow operation areas such as skull bases.

The invention provides an image-based ophthalmology robot control method, system and device and a medium, and the method comprises the steps: obtaining an intraoperative three-dimensional OCT image sequence and a visual evoked potential signal, and segmenting an optic nerve region to generate an optic nerve space model; performing dynamic registration on the optic nerve space model and the visual evoked potential signal according to an eyeball motion compensation algorithm to generate a fusion data volume; calculating a visual function injury risk coefficient and a postoperative vision recovery predicted value through a pre-trained neural network prediction model based on the fusion data body and the real-time operation parameters of the robot end instrument; and dynamically generating a robot operation correction control instruction according to the injury risk coefficient and the postoperative vision recovery predicted value. By adopting the method, the individualized precision of an operation scheme and the postoperative visual function protection effect can be improved.

The invention discloses a multifunctional visual function detection device and method based on VR and eye movement tracking, and belongs to the technical field of visual function evaluation. The system comprises a virtual reality VR display module used for generating a dynamic scene image and obtaining eye movement tracking data and ambient light data; the multi-mode sensing module is used for acquiring depth information and attitude data; the data processing module is used for performing time-space synchronization and multi-source data fusion on the eye movement tracking data, the ambient light data, the depth information and the attitude data; the self-adaptive VR rendering engine is used for receiving the data fused and processed by the data processing module and dynamically adjusting the type of a dynamic scene image of a VR display module according to the vision data of the user; and the evaluation and output module performs visual function evaluation according to the type of the dynamic scene image and outputs an evaluation result. By fusing high-precision eye movement tracking, multi-modal sensing and self-adaptive VR rendering technologies, the detection precision is remarkably improved, and the application range is remarkably widened.

The invention relates to the technical field of medical rehabilitation, in particular to a postoperative visual rehabilitation training system and method for cataract, eyeball rotation information of a patient is acquired through an interaction information acquisition module and transmitted to an eye movement and visual function analysis module, and the eye movement analysis module analyzes interaction information to obtain eye rotation action information; the visual function analysis module maps the interaction information to a topological feature space by utilizing a topological spectrum mapping algorithm to generate a feature matrix, constructs a contrast sensitivity function and a rehabilitation trajectory prediction tensor and finally generates optimal training parameters, and the training prescription generation module generates the optimal training parameters according to a visual function analysis result, eye rotation action information and a last training result. According to the system, a topological spectrum mapping algorithm is introduced, high-precision analysis of eye movement data and multi-dimensional evaluation of visual functions are achieved, an accurate basis is provided for the personalized training scheme, and the visual rehabilitation effect of a patient after a cataract operation is effectively improved.

Provided herein are methods and compositions for improving the visual function of an eye having an ocular disorder. Provided herein are methods of treating an ocular lesion of an eye of an individual, the method comprising: (a) administering a first composition comprising a Fas inhibitor. In some embodiments, the method further comprises (b) administering a second composition comprising a Fas inhibitor, where the second composition is administered for about 10 weeks or more after the first composition is administered.

1. Name of the product in this design: Bioelectric Eye and Ear Training Device. 2. Purpose of this product design: To improve visual function by performing acupuncture training on acupoints around the eyes and ears. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key features: the front view. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

Provided herein are methods and compositions for improving the visual function of the eye of a subject having an ocular condition. Provided herein are methods of improving visual function of the eye of a subject suffering from an ocular disease or condition, the method comprising: (a) administering a first composition comprising a Fas inhibitor; and (b) administering a second composition comprising a Fas inhibitor, wherein the second composition is administered for about 10 weeks or more after the first composition is administered.

1. The name of this design product: Optometrist Workbench (Jianlan AI+). 2. Application of this product design: Used for various visual function tests, comprehensive analysis and equipment management such as myopia, hyperopia, strabismus and amblyopia. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: Main view of component 1. 5. Other circumstances that require explanation: This design product includes component 1 and component 2.

1. Name of the designed product: visual function training device (head-mounted). 2. Use of the designed product: the designed product is used for visual function training device. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The invention provides a preparation method of a silk fibroin peptide nano-composite film with a heavy metal ion saturated adsorption visualization function. According to the method, an amino acid pairing (AAP) technology and a micro-fluidic reaction (MCR) technology are combined, the biocompatibility and the adsorption performance of silk fibroin peptide are utilized, and the silk fibroin peptide is compounded with a nano material, so that a novel nano composite film is prepared. The membrane not only can effectively adsorb heavy metal ions such as lead, cadmium, mercury and the like in a water body, but also has a visual function of adsorption saturation, so that a user can intuitively judge the use condition of an adsorption material through color change. The invention aims to prepare the silk fibroin peptide nano-composite membrane capable of efficiently adsorbing and visually displaying the saturated adsorption state of heavy metal ions, and the silk fibroin peptide nano-composite membrane is suitable for the fields of environmental governance, water quality monitoring and the like. The preparation method disclosed by the invention is simple, low in cost, easy for large-scale production, excellent in biodegradability and environment-friendly. The nano-composite membrane provided by the invention can realize rapid detection and treatment of water heavy metal pollution, and has important environmental and social benefits.

The utility model discloses a visual function training device. The visual training device comprises a shell, the interior of the shell is hollow, an observation window is formed in the shell, a sighting target plate and a circuit board are arranged in the shell, a plurality of sighting target lamps are arranged on the sighting target plate at intervals in the length direction of the sighting target plate, the circuit board is electrically connected with the sighting target lamps, a controller is further installed on the shell, and the controller is electrically connected with the sighting target lamps. The controller is electrically connected with the circuit board, and the controller can be used for controlling the sighting mark lamps to be turned on or turned off one by one according to a preset time sequence in the direction towards the observation window or the direction away from the observation window. Through movement of a light source of the sighting target lamp watched by a user, the eyes are promoted to generate linkage adjustment from far to near and from near to far, so that eye muscles are exercised, the effect of maintaining and even improving the adjusting ability and the gathering ability of the eyes is achieved, and the vision is improved.

The application provides a multifunctional portable visual function detection device, which comprises a large screen, a small screen assembly, a reflection assembly, a rear support for fixing the small screen assembly and the reflection assembly, an optical module and a front support for fixing the optical module; the reflection assembly comprises two mirrors which can rotate with a mirror support; and the optical module comprises two lenses which can slide up and down along the front support. The detection device has the characteristics of high efficiency, high integration and portability, adopts a common optical path design, applies a reflection device, adjusts image elements, effectively reduces the size of the device, applies virtual imaging technology of the optical module to realize 5000mm visual function detection, and does not need any auxiliary personnel to independently complete 11 detection functions of visual acuity, color vision, stereoscopic vision, contrast sensitivity, hidden squint and flash fusion frequency under 300mm and 5000mm visual distances.

The invention relates to the technical field of vision detection equipment, in particular to a vision detection device. The internal projection device comprises a display assembly used for projecting a visual chart, an imaging support movably connected with the display assembly, an internal projection base arranged below the imaging support and used for being matched with the display assembly, a driving assembly used for changing the projection angle of the display assembly and a connecting rod assembly. And the imaging bracket is internally and movably connected with a rotary reflector assembly which is matched with the inner projection base and is used for changing a projection light path of the display assembly. The method has the advantages that the problem that the visual function detection equipment is difficult to efficiently switch the detection state in the same scene is solved, and the flexibility of the detection equipment is improved.

A visual function inspecting system, configured to: determine, when a subject animal is arranged to face visual information moving in a predetermined direction, a moving speed of a visual line direction of the subject animal changing over time, based on information indicating the visual line direction obtained for a predetermined period of time; determine a frequency characteristic of the moving speed of the visual line direction based on the determined moving speed of the visual line direction changing over time; and inspect a visual function of the subject animal based on the determined frequency characteristic.

A noninvasive ophthalmic formulation, comprising a chelator (such as EDTA and its salts), a transport enhancer (such as Methyl Sulfonyl Methane; MSM), a second polyoxyalkylene permeation enhancer such as propylene glycol capable of enhancing permeation through lipid-thickened ocular membranes, a thickening agent such as hydroxyethyl cellulose (HEC) and a surfactant such as polysorbate 80, is provided. The novel combination of the ingredients unexpectedly and beneficially reduces symptoms associated with early-stage, age-related cataracts. Methods for treating cataracts with compositions of the invention and measurement of improved visual function by measuring contrast sensitivity (CS) are provided.

The utility model discloses visual function adjustment training appearance and system relates to ophthalmic optics instrument technical field. A kind of visual function adjustment training appearance, including display panel and light stimulation part, the front of display panel includes the display for output visual stimulation information;The light stimulation part includes the light district at the outer periphery of display panel front, and light district is arranged with light emitting piece to radiate the light of preset wavelength for user visual, and the eyes of the user are illuminated. The utility model improves the adjustment and training effect of visual function by the synergistic effect of visual stimulation information and illumination.