26 results about "Saccadic eye movement" patented technology

An electronic device may have a display for displaying image content. Head-mounted support structures in the device may be used to support the display. The electronic device may have an eye monitoring system that detects eye saccades and eye blinks. Control circuitry in the electronic device may coordinate operation of the display with periods of suppressed visual sensitivity that are associated with the saccades and blinks. By making adjustments to display circuitry and image content during periods of suppressed visual sensitivity, potentially visually obtrusive changes to displayed images can be hidden from a user of the electronic device. Adjustments to display operation may help reduce burn-in effects, may help reduce power consumption, and may otherwise improve device performance.

This invention relates to the field of image edge detection technology, specifically to an eyelid detection system for assessing the orbicularis oculi muscle movement function in patients with myasthenia gravis. The system includes a video frame acquisition module, an iris morphology reconstruction module, an interference level acquisition module, a gradient map correction module, and an eyelid edge detection module. By acquiring video frame data of the patient's eyes, the system corrects iris deformation in the iris region of the target image frame corresponding to eye movement. Based on the corrected iris region, the system analyzes the interference of iris morphology on eyelid edge detection, determines the degree of iris deformation interference, and then corrects the gradient values ​​of gradient points in the same area corresponding to the corrected iris region in the gradient map of the target image frame during eye movement, obtaining a corrected gradient map. Based on the corrected gradient map, the system determines the patient's eyelid edge detection result. This invention effectively improves the accuracy of eyelid edge detection for patients.

An oculography method, in particular a smart-glasses oculography method for pairs of augmented reality smart glasses and / or for pairs of virtual reality (VR) smart glasses / VR headsets. The method includes at least one oculography step in which at least one eye movement of an eye, in particular an eye of a smart-glasses user, is ascertained, in particular tracked, by a subset of laser feedback interferometry sensors of an LFI sensor array which is associated with the eye. In at least one selection step, which precedes the oculography step in time, a selection of at least one LFI sensor provided for performing the oculography step, which follows in time, is made based on a parameter comparison of test measurements of multiple LFI Sensors of the LFI sensor array.

The invention provides a Parkinson's disease freezing gait prediction method and device based on eye movement characteristics, equipment and a medium. The method comprises the following steps: acquiring target information corresponding to a target object; the target information comprises target demographic data, target clinical features and target eyeball motion parameters collected at a certain time point, and / or target demographic data, target clinical features and target eyeball motion parameters continuously collected according to a preset frequency within a preset time; and inputting the target information into the target frozen gait prediction model, so that the frozen gait prediction model analyzes and processes the target information to obtain a static frozen gait risk assessment result and / or a dynamic frozen gait risk assessment result corresponding to the target object. According to the scheme, through multi-dimensional integration and collaborative verification of traditional clinical phenotypes and objective indexes of eye movement, non-invasive efficient evaluation of frozen gait risks is achieved, and objective basis and key technical support can be provided for early diagnosis and early treatment of disease subtypes.

The invention relates to a method of processing data representative of a person's binocular motricity, the method comprising the following steps: —stimulating the binocular motricity of a person by means of a binocular motricity stimulation device (21) configured to specifically stimulate saccades, vergences or a combination of both or of a reading test (22); physical stimuli in 3D real space seen with both eyes naturally (without artifices); acquiring the movement of the right eye (RE) and left eye (LE) of a person (P) during said stimulation and, if applicable, a stimulation signal from the binocular motor stimulation device; the method comprising the following steps implemented in a processing unit (3); determination from the movement of the left eye (LE) and the right eye (RE), of an effective trajectory (Tr1) of the eyes in response to each stimulation, an effective trajectory corresponding to a saccade and / or a vergence movement of the eyes.

The application relates to an eye movement capture and tear film detection system and device, comprising an illumination module for illuminating the eyes of a subject, a collection module for recording images of the eyes of the subject, and a processing module for analyzing and processing the image information of the eyes of the subject, the illumination module comprising a first light source capable of periodically producing specular reflection in the tear film area of the eyes and a second light source capable of producing a light spot in the eyeball part of the eyes; the collection module collects a first image storing tear film information and a second image storing eyeball movement information; the processing module calculates the lipid layer thickness of the tear film of the subject based on the first image, and simulates the eyeball movement trajectory of the subject based on the second image; the processing module can also screen out the first image combined with the second image in which the eyeball is in a preset position based on the time sequence of the first image and the second image, so that the calculated thickness information is more accurate.

The present disclosure relates to optical films for spectacle lenses for use with eyes experiencing eye-length-related disorders, like myopia. The optical films are configured with a plurality of optical elements, such as a plus-powered donut-ring and optical elements with azimuthally varying power distributions configured with truncations, depressions or a tilt. The arrangement, power, size, number and / or orientation of the optical elements are pseudo-random. This configuration provides dynamic irregular directional cues to the eye which occur during natural and / or instructed eye movements. Instructions on eye movements may be provided via a Myopia Management App. This invention is aimed at slowing the progression of myopia or at preventing or slowing the onset of myopia.

The present disclosure relates to a method and system for measuring emotional investments in response to auditory and / or visual stimuli using, for example, auditory fright response, pre-pulse suppression, and spontaneous blinking and / or eye movement. The method may include displaying a first video or picture content. When an individual is viewing the first video or picture content, a second video comprising one or more eyes of the individual is captured, and when the second video is captured, the individual is exposed to one or more visual and / or auditory stimuli. The method may include determining a value indicative of eye closure based on the second video. The method may include calculating a metric based on the value.

The invention discloses an equipment evaluation method and device, equipment and a storage medium. Simulated eyeball movement is controlled according to theoretical positions corresponding to a plurality of continuous test points, and an actual eye movement direction vector during simulated eyeball movement is acquired through to-be-tested eye movement tracking equipment; determining a theoretical rotation matrix between the adjacent test points according to the theoretical position, and determining an actual rotation matrix between the adjacent test points according to the actual eye movement direction vector; and calculating a relative angle error matrix between the theoretical rotation matrix and the actual rotation matrix, and evaluating the to-be-detected eye movement tracking device according to the relative angle error matrix. According to the method and the device, the relative angle error matrix between the theoretical rotation matrix and the actual rotation matrix of the adjacent test points is determined through the relative position difference matrix error calculation mode, so that the to-be-tested eye movement tracking equipment is evaluated according to the relative angle error matrix, and the precision of the to-be-tested eye movement tracking equipment is accurately evaluated.

The invention relates to a method for providing control data for an ophthalmic ablation laser (12) of a treatment device (10). The method comprises determining a laser pulse positioning inaccuracy based on a predetermined statistic of eye movements and a predetermined processing latency, wherein the processing latency comprises a latency of a camera device (24), a beam deflection device (22), and the ablation laser (12); determining an ablation volume (14) for correcting a refractive error as a function of the determined laser pulse positioning inaccuracy; and providing the control data for controlling the ablation laser (12), which includes the determined ablation volume (14).

Various implementations of the invention relate to a silicon-embedded multi- spectral lidar system and method for non-invasive, remote monitoring of pathological conditions of an individual. The system integrates multiple laser sources, photodetectors, and a processing module onto a silicon chip, enabling the capture and analysis of spatial, spectral, scattering and temporal data from a target subject (e.g., individual). By utilizing lidar signals at various wavelengths, various implementations of the invention detect three-dimensional ("3D") surface and subsurface features such as micro-movements, vascular patterns, pigmentation changes, and tissue differences and / or irregularities. Machine learning algorithms process this information from the lidar to identify and classify abnormalities, enabling applications such as heart rate and respiration monitoring, eye movement tracking for neurological and mental health assessment, and detection of pathological skin conditions like cancer. Various implementations of the invention operate in real-time, adapt to environmental conditions, and support dynamic monitoring over time, thereby providing a comprehensive, non-contact solution for diagnostics and telemedicine, for example. Various implementations of the invention may comprise a compact silicon chip form factor suitable for portable and / or hand-held, scalable health monitoring applications across diverse environments.

The present invention relates to an apparatus (10) for determining at least one intent of at least one user. The apparatus (10) includes an eye movement sensing device (19) configured to sense at least one eye movement signal from the user, the eye movement signal being indicative of at least one eye movement of the user, and a head movement sensing device (24) configured to sense at least one head movement signal from the user, the head movement signal being indicative of at least one head movement of the user. The apparatus (10) is configured to determine at least one degree of correlation between the eye movement signal and the head movement signal and to determine at least one intent of the user based on the determined degree of correlation. The invention further relates to a corresponding method.

An epithelial removal tool and epithelial surgical procedure emits light from a lower end of the removal tool to provide a fixation light, a point for the patient to focus on to prevent eye movement and avoid injury during ophthalmic surgery. The removal tool has a housing which secures one or more removal members in fixed position. The removal members are preferably provided by synthetic brush bristles. One or more optical fibers extend from an upper portion of the housing, through the brush bristles, and to the light region which provides a fixation point that is centrally located on the terminal end of the bristles and on the bottom of the removal tool. In some embodiments, rather than a brush the removal tool may be in solid form, preferably provided by a pliant member formed of a polymeric material which transmits sufficient light to provide a fixation point.

Device for monitoring the treatment of an object (4) comprising the device (1) - an optical unit (2) designed to direct ionizing radiation (3) onto the object (4); - a filter element (5) which can be arranged in a beam path of the ionizing radiation (3) in order to attenuate a portion of the ionizing radiation (3); - an imaging unit (6) configured to detect components of the ionizing radiation (3) passing through the object (4) in order to produce an image (8) of part of the object (4); - an eye-tracking system (26) designed to detect the eye movements of an observer (25); and a control unit (10) designed to control the position of the filter element (5) depending on the eye movement during a first operating mode; characterized by the fact that the control unit (10) is set up to - to identify a predefined eye movement sequence depending on the eye movement; - to switch from the first operating mode to a second operating mode once the eye-tracking sequence has been identified; and - during the second operating mode, to control the position of the filter element (5) depending on an image analysis of the image (8).

The invention relates to the technical field of medical instruments, in particular to a child strabismus postoperative eyeball movement rehabilitation training device and a matched training method.The child strabismus postoperative eyeball movement rehabilitation training device comprises a base provided with a table top, a displayer is arranged on the table top, a moving assembly is installed at the position, corresponding to the displayer, of the table top, and the moving assembly comprises a moving frame; the adjusting frame is installed at one end of the table top, a training instrument is arranged on the adjusting frame, and a fixing assembly is arranged at the position, corresponding to the training instrument, of the adjusting frame; the chin supporting plate is arranged below the training instrument, and an adjusting assembly is arranged between the chin supporting plate and the training instrument; the chin of a patient is lifted through the chin supporting plate, the pressure of the neck of the patient is reduced, the position of the chin supporting plate relative to the adjusting frame can be adjusted through cooperation of the adjusting nut and the adjusting block, the height of the chin supporting plate can adapt to most patients, and the distance between the training instrument and the chin supporting plate can be adjusted through the adjusting threaded hole and the adjusting threaded rod; and the through groove on the training instrument can be more accurately aligned with the eyes of the patient.

Introduced here are approaches to generating an image with a fundus camera based on parameters determined through modeling of eye motion. The method captures a series of images to generate pupil position data over time. Using this data, the method determines a model for estimating pupil positions and predicts a time associated with a minimum pupil velocity. The method can estimate the pupil position at this time and generate a fundus camera configuration based on the position. The method can transmit a command to capture an image of the eye using the fundus camera configuration. By implementing these approaches, an imaging system can improve the quality of retinal imaging for patients with eye motion.

The utility model relates to the technical field of medical teaching models, and discloses an eyeball model for operation training, which comprises a model frame, an upper eyelid, a lower eyelid and an eyeball model, and is characterized in that the model frame is fixed with the upper eyelid and the lower eyelid; the eyeball model comprises an eyeball wall, a crystalline lens and other structures, four intraocular muscles are uniformly connected to the external circumference, the other ends of the intraocular muscles are connected with a first motor, and a first motor shell is fixed to an eye contact at the rear end of the eyeball wall; the upper eyelid is provided with a lacrimal sac and an upper lacrimal passage which are communicated; the lower eyelid is provided with a lower lacrimal passage and a lacrimal passage blocking assembly. The model can accurately simulate intraocular muscles to drive eyeballs to move, normal tear circulation and the pathological state of lacrimal passage blockage, achieves centralized control in cooperation with a control panel, improves training intuition in combination with acousto-optic feedback, can meet various practical operation training requirements, solves the problems that a traditional model is low in simulation degree, single in function and the like, and improves training efficiency and quality.

The application discloses a glasses leg structure type electroencephalogram collection electrode and intelligent electroencephalogram collection glasses, and belongs to the technical field of brain-computer interfaces. The electrode comprises a recording electrode integrated in the inner side of a glasses leg, a reference electrode integrated in a nose pad and a signal transmission circuit. The recording electrode is attached to the head to collect electroencephalogram signals, the reference electrode provides a reference potential, and the signal transmission circuit is connected to a signal processing module. The intelligent electroencephalogram collection glasses further comprise a glasses frame, a power module and an optional eye movement tracking module. The glasses can fuse electroencephalogram signals and eye movement signals, and output control instructions after feature extraction, customized combination and intention recognition. The electrode and the glasses are designed in an integrated manner, and the wearing comfort and signal collection stability are considered, so that the non-invasive and convenient collection of electroencephalogram signals is realized, and the glasses are suitable for daily use.

Disclosed is a system (100) for securing a patient, intended to interact with a robotic platform equipped with a surgical instrument (30) suitable for eye surgery, the system comprising: —at least one ocular sensor (110) capable of detecting movement of an eye (10) of the patient and / or at least one cephalic sensor (120) capable of detecting a movement of the head (20) of the patient; and —a data processing means (130) for receiving data from the ocular sensor (110) and / or the cephalic sensor (120), processing the data in order to determine a level of risk for the patient on the basis of a predetermined criterion, then automatically sending a command for securing the patient to the robotic platform, the command being dependent on the previously determined risk level.

The application relates to a surgical instrument control method, system and head-mounted control module. The surgical instrument control method comprises the following steps: acquiring eye image data and head movement data; acquiring a current control mode of the head-mounted control module; acquiring target control data according to the current control mode, and controlling the movement of the surgical instrument according to the target control data, wherein the target control data comprises at least one of eye movement data and head movement data, and the eye movement data is acquired according to the eye image data. The surgical instrument control method can simplify the control operation of the surgical instrument.

A physiological state evaluation apparatus contacts an external auditory pore when mounted in a subject's auricle. The evaluation apparatus: collects sound vibrations generated from a larynx and a pharynx via a cartilage region of the external auditory pore; optically detects a pulsatory motion of blood through blood vessels and measures pulse rate and blood oxygen saturation, on the basis of a change in optical intensity caused by the pulsatory motion; detects brain waves and eye movements using a pair of conductive electrodes for detecting electric potentials of right and left external auditory pore surfaces; detects, sound quality, number of times, tidal volume, and rhythm of the subject's breaths on the basis of the acoustic signal; and evaluates a health condition of the subject while sleeping on the basis of the respiratory condition, the pulse rate and the blood oxygen saturation, and the brain waves and the eye movements.

Device for detecting eye movement, comprising: Acquisition switching logic configured to acquire a physiological signal, wherein the acquisition switching logic includes a plurality of electrodes (208, 304, 304a-g, 304i-k, 404, 504, 504A, 504B, 604, 604A, 604B, 804); and one or more elastomeric materials (516) coupled to a respective electrode pair of the plurality of electrodes (208, 304, 304a-g, 304i-k, 404, 504, 504A, 504B, 604, 604A, 604B, 804); wherein each electrode pair is configured to receive a signal (766, 932, 934, 936, 938) that is associated with changing a shape of one or more elastomer materials (516) and the respective electrode pair in order to improve the contact between at least one of the respective electrode pair and the tissue of a user.

Systems and techniques are described for extended reality (XR) operations. An XR system displays virtual content using a display according to display settings. The display settings can identify, for instance, a position, orientation, and / or size of the virtual content as displayed. The environment can be viewable using the display as the virtual content is displayed by the display, for example using a see-through display or a pass-through display. The imaging system can determine, based on one or more attributes of one or both eyes of the user of the imaging system, an extent of perception of the virtual content that is displayed using the display by the user. The attributes can identify, for instance, eye position, eye movement, pupil dilation, saccades, fixations, blinking, and / or squinting. The XR system can determine, based on the extent of perception of the virtual content by the user, a modification to the display settings.

To enable rapid identification of changes in gaze position by utilizing specific eye movements. [Solution] The operation support unit 2, which functions as a gaze detection device, includes an interpupillary distance detection unit 13 that detects the interpupillary distance Dp of the target, the driver D, and a gaze detection unit 14 that detects the gaze position of the driver D. The gaze detection unit 14 has a gaze change determination unit 14a that, when it detects that eye movements have occurred that cause a change in the interpupillary distance Dp of a predetermined amount or more twice within a predetermined time, determines that the gaze position of the driver D has changed along with a change in viewing distance.

The invention discloses a visual field promotion training system based on back flow visual channel motion space stimulation, and relates to the technical field of visual field promotion. A visual field missing map management module is constructed and used for generating an initial visual field missing map of a user and baseline data of a visual field missing area; constructing a dynamic potential evaluation module, and generating a pixel-level visual potential map based on the baseline data; constructing a target generation module, and generating a dynamic pixel target for the visual potential map; constructing an eye movement tracking module which is used for tracking eyeball movement of the user in real time and confirming eye movement data of the user on the dynamic pixel target to obtain a training effect; a rehabilitation effect quantitative evaluation module is constructed, the training effect of completing the training task by the user is obtained, and a quantitative rehabilitation report is generated; through a closed-loop training mechanism combining dynamic potential evaluation and real-time eye movement tracking, a back flow visual pathway can be effectively activated, and personalized visual function rehabilitation training for a visual field defect area is realized.

A method for detecting, diagnosing or screening for concussion in a subject includes a) tracking eye movement of at least one eye of the subject, b) analyzing eye movement of at least one eye of the subject, c) calculating a statistical test for eye movement of at least one eye of the subject as compared to a normal or mean eye movement, and d) detecting, diagnosing or screening for an impairment based on the calculated statistical test.