38 results about "Visual function" patented technology

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.

The present application relates to a kind of microglial cell P2Y6R target point inhibitor and its application, belong to biological medicine technical field.For the problems such as lack of effective treatment means for retinal pigment degeneration, abnormal activation of microglial cell accelerates course and lack of specific intervention target point, the application of inhibitor with P2Y6R as target point in preparation treatment retinal pigment degeneration drug is proposed, especially siRNA and shRNA for knocking down microglial cell P2ry6 gene are provided, and AAV vector containing microglial cell specific promoter is constructed, the specific silencing of P2ry6 in retina is realized.The present application can significantly inhibit abnormal activation of microglial cell and inflammatory response, reduce photoreceptor apoptosis, improve retina structure and visual function, and provide a new strategy for targeted treatment of retinal pigment degeneration.

This invention discloses a kidney-tonifying and blood-activating traditional Chinese medicine composition and its application in improving postoperative visual function, belonging to the field of pharmaceutical technology. The kidney-tonifying and blood-activating traditional Chinese medicine composition of this invention is made from 10 parts of Cuscuta chinensis, 15 parts of Broussonetia papyrifera fruit, 18 parts of Lycium barbarum, 15 parts of Leonurus japonicus, 20 parts of Leonurus japonicus, 10 parts of Ligusticum chuanxiong, 9 parts of Prunus persica kernel, 6 parts of Carthamus tinctorius, 15 parts of Poria cocos, 18 parts of Albizia julibrissin bark, 12 parts of Astragalus membranaceus, and 12 parts of Pueraria lobata root. It can be standardized and adjusted according to clinical complications. This invention focuses on the critical point of "kidney deficiency and blood stasis" one month after posterior scleral reinforcement surgery, using the principles of tonifying the liver and kidneys and activating blood circulation to improve ocular microcirculation, enhance and stabilize vision, thereby protecting visual function, and conforming to the treatment principle of "treating the root cause when the condition is mild."

In some embodiments, generative systems are physical mechanics and hardware apparatus to generate display content and include an input receiver module, a graphics processor module, and an output module. In some embodiments, the input receive module converts or splits a video input signal to provide a video input stream for the graphical processing module, which includes one or more processing units. The graphics processor module extracts both the graphical input content and the metadata of the input stream, operates on said information, and outputs the result to the output module, which emits an output signal for display on a display system. In some embodiments, the graphics processor module uses a generative function or a computer vision function. In some embodiments generative system is a standalone device to mediate and infer visual content between a computational system and a display system.

The application discloses a pre-cataract surgery visual function expectation evaluation method, collects preoperative basic examination data, subjective expectation expression data and a preset visual task scene library, and screens a candidate visual task scene set; a scene acceptance result set is obtained through patient acceptance interaction discrimination; subjective expectation expression data are combined and analyzed to generate a visual function requirement parameter set; a visual task tolerance threshold is further quantified and structured and coded into an expectation feature vector, and a preoperative visual function expectation evaluation result is output, which is used for preoperative lens matching, preoperative communication prompting or postoperative satisfaction risk prediction.

Testing methods for evaluating visual and neurological functions of a human or animal subject that involve conscious perception. The tests include a training phase, a practice phase, and a visual rivalry phase for detecting binocular rivalry or multistate competition. The design of the testing methods offers simple, rapidly administered, nonverbal visual testing with high time resolution and access to changing conscious perceptual states of the test subject. The methods also make possible the collection of a large amount of data in a short time for analysis of the subjects visual function and brain function, and can be used in the diagnosis of many medical conditions.

The application relates to a transcranial electrical stimulation control method and a transcranial electrical stimulation system for visual function, which comprises the following steps: acquiring an initial position of a stimulation target point and an initial stimulation parameter; adjusting the initial position of the stimulation target point based on a first electroencephalogram signal collected when a user performs a visual function adjustment task to obtain a target position; controlling an electrode assembly to be placed at the target position and controlling the electrode assembly to discharge based on the initial stimulation parameter; acquiring real-time state data of the user during the discharging process; and adjusting the initial stimulation parameter based on the real-time state data to change the discharging state of the electrode assembly, thereby solving the problem of insufficient optimization effect of stimulation control, fusing multi-modal data, adaptively adjusting the stimulation target point and the stimulation parameter, realizing a personalized dynamic stimulation scheme in a visual function remodeling scene, and greatly improving the optimization effect of stimulation control.

A technique and apparatus for performing a visual field test on an eye includes sequentially presenting visual stimuli to the eye on a display. A first fixation target is presented on display in a first position offset from a center of the display, such as while presenting first visual stimuli on the display for measuring a visual function sensitivity of the eye contemporaneously with presenting the first fixation target. A response of the eye to the first visual stimuli is registered. A second fixation target is presented on the display in a second position offset from the center of the display, wherein the second position is different than the first position, such as while presenting second visual stimuli on the display for measuring a visual function sensitivity of the eye contemporaneously with presenting the second fixation target. A response of the eye to the second visual stimuli is registered.

This application relates to a method, system, device, and medium for detecting visual function depth in patients with no light perception. It is applied in the field of visual function testing technology. The method includes: acquiring basic information, historical testing data, and parameter fixing rules for the target patient; generating an initial testing plan based on the basic information, historical testing data, and parameter fixing rules; performing visual function testing on the target patient based on the initial testing plan, generating real-time testing data and real-time operational data; adjusting the initial testing plan in real-time based on the real-time testing data and real-time operational data to generate a visual function testing plan; acquiring full-process testing data and full-process operational data; and generating a visual function depth testing report based on the visual function testing plan, full-process testing data, and full-process operational data. This application improves the accuracy of visual function testing and evaluation in patients with no light perception.

1. Name of the product in this design: Visual Function Testing and Training Integrated Machine (K21). 2. Purpose of this design: This design is used for ophthalmic examinations and vision training. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The disclosed system provides an integrated neuroimaging analytics platform for comprehensive preoperative neurosurgical planning, intraoperative neurosurgical guidance and post-operative assessment by processing multimodal MRI (structural, diffusion, functional, and angiography) and CT data. The platform performs detailed anatomical characterization by delineating tumor subregions (peritumoral edema, enhancing tumor, and necrotic core), segmenting brain tissues (gray matter, white matter, and CSF), and executing lobe, cortical / subcortical parcellation. Advanced 3D rendering visualizes tumors alongside critical white matter fibre tracts derived from diffusion MRI, while MRA data is used to segment cerebrovascular structures, and functional MRI analysis identifies eloquent cortices associated with motor, speech, and visual functions. All results are integrated within a user-friendly GUI featuring advanced multiplanar slicing and a smart brush for interactive mask editing, complemented by a speech-to-text engine for streamlined analytical reporting. This comprehensive approach facilitates precise and efficient surgical planning, thereby enhancing patient safety and improving clinical outcomes.

This application relates to the field of visual function training technology, and discloses a visual function training method, device, smart glasses, and storage medium. The method is applied to smart glasses equipped with a zoom lens unit. The method includes: controlling the zoom lens unit to switch to a preset refractive power while the user is wearing the smart glasses for visual function training; collecting the user's current eye movement data and determining the user's accommodative reaction time based on the current eye movement data, the accommodative reaction time being the time elapsed from the start of the zoom lens unit switching to the preset refractive power to the user's fixation on the target visual object; adjusting the preset refractive power based on the accommodative reaction time, and controlling the zoom lens unit to switch to the adjusted preset refractive power for visual function training. This application, by introducing an eye movement feedback closed loop, can sense the user's accommodative ability and adaptively optimize the refractive power. During visual function training, the user can directly obtain personalized training intensity, improving the effectiveness of the training.

Provided is a binocular visual function system for evaluating binocular single vision. The system comprises: a line-of-sight guiding unit that directs line-of-sight directions of the left eye and the right eye of a subject in a second direction different from a first direction while fixing the head of the subject in the first direction; and a processing unit that presents images spatially separately to the left eye and the right eye of the subject the line-of-sight directions of which have been guided in the second direction by the line-of-sight guiding unit. The images has feature amounts as indices indicating visual characteristics. The feature amount of a left eye image, which is the image presented to the left eye, is different from the feature amount of a right eye image, which is the image presented to the right eye.

This invention relates to the field of visual function training technology, and in particular to a myopia prevention and control training device, comprising a control module for generating training images and a display processing module for displaying the training images. The control module generates corresponding training targets according to preset training modes and controls the display parameters of the training targets to form training images corresponding to different preset training modes. This invention, by setting up a control module and a display processing module, enables the control module to generate corresponding training targets according to preset training modes and control the display parameters of the training targets to form training images corresponding to different preset training modes; then, the display processing module processes the training images to output and display them in a manner suitable for the corresponding training mode.

The application discloses a functional magnetic resonance image decoding method based on explicit brain region interaction modeling. First, an encoder network is trained in a supervised manner through image-magnetic resonance signals, then a decoder network is trained in a supervised manner through magnetic resonance-image signals, and meanwhile, a decoding-encoding structure and an encoding-decoding structure formed by stacking the encoder and the decoder network are trained in a self-supervised manner using the magnetic resonance signals and the image signals, then an information interaction network containing brain region and inter-brain region information interaction modeling is trained in a combination of the supervised and unsupervised manners, finally, the training is completed using the images and the magnetic resonance signals provided by a data set, the magnetic resonance signals to be decoded are input into the information interaction network and the decoder network to obtain a final image decoding reconstruction result. The method can effectively perform image decoding reconstruction based on functional magnetic resonance signals, and provides an effective image decoding reconstruction model for various visual function exploration research based on magnetic resonance signals.

The application relates to a retinal cell type-based visual function related parameter acquisition system and belongs to the technical field of medical auxiliary systems. The application aims to accurately acquire a retinal cell type-based visual function related parameter acquisition system of L cone, M cone, S cone, ipRGCs and other different retinal cell type function related physiological parameters. The system of the application comprises a stimulation presentation module, a brightness calibration module, a biological signal acquisition module, a multi-dimensional parameter extraction and cell type specific parameter decoupling module, a parameter analysis and standardized output module, a user interaction module and a data storage module. The application can provide a portable, objective, non-invasive and cell type specific retinal function related parameter acquisition technology, provide comprehensive and reliable technical support for visual function evaluation, is suitable for large-scale parameter acquisition and home monitoring, and solves many limitations of the prior art.

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

The invention relates to the technical field of visual function training, and discloses a visual function training method and device, intelligent glasses and a storage medium, and the method is applied to the intelligent glasses provided with a zoom lens unit. The method comprises the steps that under the condition that a user wears the intelligent glasses, vision correction is conducted on the user through a zoom lens unit; the current sight line of the user is obtained, and under the condition that the current sight line is switched from the first distance to the second distance, the zoom lens unit is controlled to carry out dynamic zooming, so that the zoom lens unit carries out visual function training on the user through dynamic zooming, and the first distance is smaller than the second distance. According to the method and the device, by combining zoom training with daily vision switching, dynamic visual function training can be realized in the natural eye using process of the user, so that when the user wears the intelligent glasses, a visual function training task can be directly completed in daily vision, and the convenience of visual function training is improved.

Methods of using visual functions such as dark adaptation, low luminance visual acuity, low luminance deficit, contrast sensitivity and scotopic sensitivity as functional biomarkers for statin therapy in AMD. These biomarkers can be used, for example, to support clinical trials of statin therapy for AMD by identifying participants more likely to respond, by providing an early indication of response, or by serving as an endpoint; or to support treatment of AMD patients with statins by identifying patients more likely to respond, by providing an early indication of responders vs. non-responders, or by confirming a treatment benefit.

The invention focuses on developing final ophthalmic dosages based on Sildenafil associated with bevacizumab, known for its retino-protective properties, aimed to preserve and improve visual functions, particularly in patients with retinal degenerative disease specially for the dry form of macular degeneration

The utility model relates to visual function detection technical field especially a kind of visual function detection instrument with adjusting eyepiece function, including detection instrument main body, connecting band, support plate, eyepiece and rear brain backplate, the first end of connecting band is fixed on detection instrument main body, the second end of connecting band is fixed on support plate, eyepiece is movably installed on detection instrument main body, first adjusting mechanism for adjusting eyepiece displacement is equipped between eyepiece and detection instrument main body, rear brain backplate is movably installed on support plate, second adjusting mechanism for adjusting rear brain backplate displacement is equipped between rear brain backplate and support plate. Like this setting, when using, according to patient pupillary distance, through first adjusting mechanism for adjusting eyepiece displacement, it can be applicable to the patient use of different pupillary distance, while according to the head circumference size of patient, through second adjusting mechanism for adjusting rear brain backplate displacement, it can be applicable to the patient use of different head circumference, while the comfort degree is higher, and the use effect when patient wears is better.

The present disclosure relates to a candela reproduction method and device based on a virtual blackbody equivalent spectrum synthesis light source, belonging to the technical field of optical metrology testing. The method comprises: calculating the spectral radiance distribution of an ideal blackbody based on the freezing point temperature of platinum; constructing a spectral synthesis light source composed of narrowband spectral light sources and homogenizing devices; determining the target spectral radiance distribution of the spectral synthesis light source for a preset human eye spectral light visibility efficiency function, so that the weighted integral value of the target spectral radiance distribution is equal to that of the ideal blackbody; adjusting the power of each narrowband light source in the spectral synthesis light source so that the spectral radiance distribution of the spectral synthesis light source reaches the target spectral radiance distribution p times; when the effective light emitting area of the outlet surface of the spectral synthesis light source is 1 / 60 square centimeters q times, the luminous intensity is determined to be p q candela, thus realizing a candela reproduction scheme consistent with the historical definition, compatible with multiple visual function models, and taking into account both theoretical rigor and engineering feasibility.

1. The name of the design product: visual function training instrument. 2. The use of the design product: for myopia prevention and control, visual fatigue relief, amblyopia correction and visual function regulation. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The application relates to the technical field of neurosciences, in particular to a big data visual function intelligent analysis method and system. The system comprises a cascade action potential extraction module, an action potential separation module, a function analysis module and an integration and statistics module; the action potential extraction module is used for screening effective recording channels, extracting action potential sequence information and analyzing visual stimulation information; the action potential separation module is used for integrating single big data type electrophysiological data of multiple effective channels, classifying and obtaining action potential sequence information of a single neuron; further outputting action potential sequence information of a single type neuron; the function analysis module is used for visual function analysis of the neuron; and the integration and statistics module is used for constructing a database and performing analysis and evaluation. The method can solve the problem that the prior art lacks an analysis method and system for high-throughput electrophysiological data for visual research, and has the characteristics of high efficiency and high precision.

This application discloses a liver peptide with liver-protective and eye-fatigue-relieving properties, its preparation method, and its applications, belonging to the field of biotechnology. The liver peptide contains at least one of DAIP, SPF, DIAP, SLP, AVGP, or NLP. The prepared liver peptide has multiple physiological functions: it can effectively activate ADH enzyme activity, reduce ALT and AST levels, and protect hepatocytes; it improves lipid metabolism by regulating the expression of SREBP-1c, FAS, and PPAR-α genes; it also has significant antioxidant capacity, reducing ROS levels and increasing SOD and CAT content; and it can upregulate RPE65 and LRAT gene expression, maintaining visual function. The method disclosed in this invention is simple and convenient to operate, and the obtained liver peptide can be widely used in functional products for liver protection and eye fatigue relief, providing an innovative solution for the high-value utilization of liver resources.

A method for rapidly assessing cerebral visual function based on electroencephalogram (EEG) and fast periodic visual stimulation oddball paradigm includes: presenting several sets of visual stimuli images to a target individual and collecting EEG signals of the target individual while presenting the visual stimuli images, detecting a first and a second signal amplitude of the EEG signals, comparing the first signal amplitude with a third signal amplitude of a healthy individual in a database to determine a visual processing ability score of the target individual, and comparing the second signal amplitude with a fourth signal amplitude of the healthy individual in the database to determine a visual discrimination ability score of the target individual.

The utility model relates to visual function detection technical field, especially visual function detection instrument, including base, be equipped with detection appearance on the base, and the detection appearance first end is equipped with display screen, and the detection appearance second end is equipped with camera lens, frame, the frame is fixed on the base through fixed component, and the frame is equipped with camera lens protection board and slides, and camera lens protection board and camera lens correspond to set up, are used for the shielding or exposure of camera lens, the frame is movably equipped with mandibular support pad, and mandibular support pad is equipped with the drive assembly for driving camera lens protection board displacement on, when camera lens protection board and camera lens correspond, are used for the shielding of camera lens, when camera lens protection board and camera lens are misaligned, are used for the exposure of camera lens. Set up like this, when not working, through camera lens protection board shielding camera lens, can prevent the exposure of camera lens, and further effectively avoid that camera lens is damaged by external force knock.

The utility model discloses a logo visual inspection frock structure, including the seat body and visual inspection module, the seat body has the detection station, and visual inspection module is equipped with two and interval formula arrangement on the seat body, and the detection station is located between two visual inspection modules, and visual inspection module includes the mounting seat, visual inspection device and displacement device, and the mounting seat is movably established on the seat body, and is fixed through the first locking spare, and displacement device drive connection is established on the mounting seat in visual inspection device, so, utilize the mounting seat on the seat body big distance's activity adjustment, cooperate displacement device control visual inspection device and the distance fine adjustment operation between detection station, can nimblely obtain multiple visual function detection analog distance value and the advantage of detecting multiple visual functions to ensure the detection precision of visual inspection device to the workpiece of detection, simple operation, convenient to use, is favorable to the detection efficiency of different specification workpieces of improving, satisfies the use demand of user, and the scope of application is wide.

The application relates to the field of intelligent medical treatment, in particular to a visual function recession quantitative evaluation method, system and device. Early detection and accurate evaluation of visual function recession are key links for delaying disease progression and reducing the risk of irreversible visual function damage, however, existing clinical evaluation faces many limitations. In model training, the application corrects dimension sensitivity shrinkage by a psychological cognitive state, explicitly injects disc anatomical partition into the fundus feature extraction process, and introduces a physiological consistency ordering constraint between the visual function recession grade and the retinal age, so that the model accurately evaluates early visual function recession. The application provides a more accurate quantitative evaluation method, which has important clinical value and industrial value.

The application provides a weak vision training method and system based on superposition of visual stimulation and body movement, and relates to the technical field of visual function training. An original visual image is displayed on a virtual reality display device, and a weak vision user to be trained watches the original visual image by using binoculars; visual stimulation content is superposed on the original visual image, so that the visual content observed by the weak eye and the strong eye of the weak vision user to be trained is different, the visual content observed by the weak eye is stimulated more strongly than the visual content observed by the strong eye, and the difference between the visual content stimulated by the strong eye and the weak eye makes the two eyes balanced; specific body movement training instructions are issued during the training process, and corresponding visual effects of the specific body movement are superposed when the user completes the specific body movement. While promoting the coordination of the two eyes, the visual stimulation content is used as an attention improvement tool to promote the visual-body-vestibular integration of the user, and the compliance of the weak vision user to be trained in the training and treatment is enhanced.