Abstract: The present disclosure provides systems and methods for improving detection and location determination accuracy of abnormalities during a gastroenterological procedure. One example method includes obtaining a video data stream generated by an endoscopic device during a gastroenterological procedure for a patient. The method includes generating a three-dimensional model of at least a portion of an anatomical structure viewed by the endoscopic device based at least in part on the video data stream. The method includes obtaining location data associated with one or more detected abnormalities based on localization data generated from the video data stream of the endoscopic device. The method includes generating a visual presentation of the three-dimensional model and the location data associated with the one or more detected abnormalities; and providing the visual presentation of the three-dimensional model and the location data associated with the detected abnormality for use in diagnosis of the patient.

Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.

Abstract: Systems and methods for tracking the position and condition of an eye during an ophthalmic procedure include an ophthalmic device configured to measure characteristics of an eye, an eye tracker configured to capture a stream of eye images, and a logic device configured to analyze the stream of images to determine whether the eye is fixating on a target object, detect a predetermined blink sequence in the first stream of images, delay for a predetermined tear stabilization period, start a stable tear film interval, and during the stable tear film interval, capture at least one measurement of the eye using the ophthalmic device when the eye is fixating. The blink sequence may include a plurality of blinks in succession and the detection of the blink sequence may include processing the images through a neural network trained to detect an open eye and/or a closed eye.

Abstract: Electrical connections are created between the actuator frame of a piezoelectric MEMS scanning mirror system and the substrate separate from the structural adhesive creating the mechanical bond between the actuator frame and the substrate. A structural bond (with no conducive properties) is formed between the actuator frame and the substrate. After the bond is fully formed, separate electric connections can be created by one or both of: 1) coating the actuator frame with a coating that enables a surface of the actuator frame to be wire bondable and creating a wire bond between the actuator frame and the substrate; or 2) depositing a trace of conductive material on the outside edge of the mechanical bond between the actuator frame and the substrate and a final protection layer may be applied over the conductive trace to protect the trace from mechanical or environmental damage.

Abstract: In the device and method, the angle of incidence of slit light onto an eye to be examined is determined from its Purkinje reflection recorded in an image by measuring the offset from the reflection to the apex of the image of the cornea. In another embodiment, Purkinje reflections of light sources arranged around the optical axis of the microscope are correlated with a reference pattern of radial stripes in order to determine the offset between the optical axis and the apex of the eye.

Abstract: The present invention relates to a method for providing visual perception training using visual perception learning, the method comprising the steps of: obtaining a field-of-view map having a plurality of unit regions to which a vision index reflecting a user's vision ability is assigned; providing a first session using a visual perception task which is performed by displaying a first visual object for central fixation of the user's field of view and a second visual object in the vicinity of the first visual object, and requests the user's response related to at least the second visual object; determining a vision ability changed region among the plurality of unit regions on the basis of the user's response from the first session; and providing a second session using the visual perception task.

Abstract: An electronic device, a method and a computer program product for automatic camera adjustments based on eye gaze tracking. The method includes capturing, via a front facing camera, an image stream containing a face of a user and determining, via a processor, an eye gaze direction of the user based on an image retrieved from the image stream. The eye gaze direction corresponds to a location on a display where the user is looking. The method further includes mapping the location on the display to a region of interest (ROI) for focusing a rear facing camera and generating camera settings of the rear facing camera based on the ROI. The method further includes adjusting the rear facing camera using the generated camera settings such that the rear facing camera focuses on the ROI.

Abstract: A device such as a color printer includes a main memory, a cache memory, and a convolutional neural network configured to convert pixels from a first color space to a second color space. The convolutional neural network is organized into execution-separable layers, and loaded one or more layer at a time (depending on cache size) from the main memory to the cache memory, whereby the pixels are processed through each of the layers in the cache memory, and layers that have completed processing are evicted to make room for caching next layer(s) of the network.

Abstract: A method and device for determining an optical equipment adapted to a wearer and comprising an optical lens and a spectacle frame, the method including providing data relative to the wearer comprising optical requirements of the wearer, providing an optical cost function related to an optical function parameter of the optical lens and being defined based at least on part of the data relative to the wearer, providing a comfort cost function related to a comfort parameter, providing a mechanical interaction cost function that varies as a function of a geometrical parameter of spectacle frame and a geometrical parameter of optical lens, and determining an optical equipment that minimizes a global cost function, the global cost function being a weighted sum of all cost functions.

Abstract: An artificial intelligence eye disease screening and diagnostic system based on an ophthalmic robot, comprising a human eye positioning analysis module, an image information collection module, an AI picture quality monitoring module, an eye disease analysis and diagnosis module, a data storage management module, and an execution control module. The system can replace ophthalmologists to perform eye disease diagnosis tasks in regions lacking ophthalmologists, and assists the ophthalmologists in eye disease screening and diagnosis in large hospitals with a large number of patients, thus improving diagnosis efficiency.

Abstract: An example operation includes one or more of determining a reaction by at least one occupant of a transport, related to a most relevant data of the transport, and sending a notification of the reaction and the data to a display associated with the at least one occupant, when the reaction is greater than a threshold.

Abstract: A method for automatically assessing the near vision accommodative state of a non-presbyopic individual, the method being carried out by computer and performed after an assessment of the individual's far vision leading to the generation of a far vision assessment report, includes generating a near vision assessment report optionally including at least one recommendation dependent on the far vision assessment report.

Abstract: The present invention relates to an ophthalmic treatment apparatus and a control method therefor, the ophthalmic treatment apparatus comprising: a display unit for displaying an image of a patient's eyeground; a treatment region setting unit for setting a treatment region on the basis of the image of the patient's eyeground; a treatment light radiating unit for radiating treatment light to the set treatment region; a radiation density setting unit for setting radiation density of the treatment light radiated to the set treatment region; and a control unit for controlling the treatment light radiating unit so as to radiate the treatment light onto the set treatment region on the basis of the set density.

Abstract: The invention relates to a method of scanning for vascular ill health using a data set from an in vivo scan, the method including the steps of: (1) extracting blood vessel location data and blood vessel size data from the scan data set; (2) selecting a region in the extracted vessel location data; and (3) comparing the size data in the selected region to size data in a corresponding region of a normative data set to determine vascular health.

Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system that images the user's eye and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye. The display system may render virtual image content with a render camera positioned at a determined position relative to the determined position of the center of rotation of said eye.

Abstract: There is provided a VR-based portable nystagmus test apparatus that provides both a three-dimensional stereoscopic image and a voice to a subject such that efficiency and accuracy of a follow-up examination can be enhanced. The VR-based portable nystagmus test apparatus can enhance the accuracy and efficiency of an examination by inducing the subject to make a correct motion, during the examination on the subject who wears the VR-based portable nystagmus test apparatus.

Abstract: Techniques for providing eyewear with electrical components are disclosed. The electrical components can provide electrical technology to eyewear without having to substantially compromise aesthetic design principles of the eyewear. The electrical components can be partially or completely internal to eyewear. The electrical components can also be attached to the eyewear as an after-market enhancement. The electrical components can operate independently or together with other electrical components provided elsewhere. Apparatus for presenting after-market electrical components are also disclosed.

Abstract: A chart display device for a visual acuity test includes a chart display optical unit that emits a chart image generated by a chart display optical system to a front, and is rotatably coupled to a frame of the chart display device via a rotation shaft; a position indicator light source that indicates the height of an eye to be examined and emits a position identification light; a position detection sensor that detects the position identification light emitted from the position indicator light source, and thus detects the height of the eye to be examined; and a rotation driving unit that rotates the chart display optical unit around the rotation shaft, and thereby tilts an emission direction of the chart image so that the chart image emitted from the chart display optical unit is emitted in the direction of the eye to be examined.

Abstract: A probe for use with an imaging system, including a scanning device configured to receive a first light beam from a light source, a beam-divider configured to split the first light beam into a plurality of second light beams, and a focusing device configured to focus each of the second light beams on respective locations in an object of interest is disclosed.

Abstract: A system and method for digital imaging and communications in security (DICOS) standard compliance validation. The system and method may validate both communication messages and files for compliance with the DICOS standard. In some embodiments, the system includes a processor for communicating with a test subject and a memory having program instructions stored thereon for performing a compliance test of the test subject to determine if the test subject is complaint with the DICOS standard. Execution of the instructions by the processor causes the processor to carry out the steps of: confirming that a transmitted DICOS message, e.g., a response or request, from the test subject is compliant with the DICOS standard; logging any errors in the transmitted DICOS message from the test subject in a validation report; and transmitting a simulated DICOS message, e.g., a response or request, to the test subject.

Abstract: Methods and systems for determining a refractive correction for eyeglasses involve obtaining an objective measurement of a wave aberration. The objective measurement includes an objective spherical power (SPH_o), an objective cylinder power (CYL_o), an objective cylinder axis (AXIS_o), and other residual aberrations; and uses objective vision optimization to achieve a best image quality for the eye from the residual aberrations. A prescription cylinder power (CYL_p), is determined using a software module, where an absolute value of CYL_p is less than an absolute value of CYL_o and achieves an acuity of at least 20/20. A prescription spherical power (SPH_s) is determined subjectively by dialing into a phoropter module a cylinder correction according to the prescription cylinder power (CYL_p) from the software module and the objective cylinder axis (AXIS_o) according to the objective aberrometer module. A prescription for an ophthalmic lens of the eyeglasses is generated that includes SPH_s, CYL_p and AXIS_o.

Abstract: An object is to not lose an effect of suppressing the progression of myopia or hyperopia even in a peripheral area of a spectacle lens. A spectacle lens and a technology related thereto are provided, the spectacle lens including: a first area that causes light rays incident on an object-side face of the lens to exit from an eyeball-side face of the lens and to converge at a predetermined position A on a retina of a wearer; and a plurality of second areas configured to cause light rays to converge at a position B on the object side or a position C on the distal side relative to the position A, wherein, in the first area in a peripheral area of the spectacle lens that is a radius range from 4.

Abstract: Techniques for providing eyewear with electrical components are disclosed. The electrical components can provide electrical technology to eyewear without having to substantially compromise aesthetic design principles of the eyewear. The electrical components can be partially or completely internal to eyewear. The electrical components can also be attached to the eyewear as an after-market enhancement. The electrical components can operate independently or together with other electrical components provided elsewhere. Apparatus for presenting after-market electrical components are also disclosed.

Abstract: A gaze tracking system comprising one or more cameras operable to capture one or more images of a side view of one or both of a user's eyes, a cornea identification unit operable to identify the location and size of a cornea in one or more of the captured images, a gaze detection unit operable to determine a direction of the user's gaze in dependence upon the identified location of the cornea in the one or more captured images.

Abstract: A method comprises: capturing, with an image sensor, at least one image of a head of a user, wherein the at least one image includes an image of an eye of the user; processing the at least one image to obtain position information for features of the head and eye of the user; and determining, based on the position information for the features of the head and eye of the user, at least one parameter of a daily use eyewear frame.

Abstract: The eye cover system has a scope attachment portion, an adjustment portion, and an eye cover portion. The scope attachment portion is arched so as to receive a cylindrical eyepiece of a spotting scope. The scope attachment portion couples to the eyepiece via an adjustable elastic band. Further, the scope attachment portion is coupled to a shaft that receives the eye cover portion. The eye cover portion comprises a removably attachable hood with a protrusion that receives the shaft through a slide aperture. In use, the unused eye's view is blocked by the hood.

Abstract: The invention relates to a method for operating a visualization system in a surgical application, wherein a registration device of the visualization system provides a video data stream with a first image size as an output, wherein an image excerpt of the video data stream with a second image size that has been reduced in relation to the first image size is transmitted to a head-mounted visualization device via a communications link and is displayed on a display device of the visualization device, wherein a viewing direction of a user is registered by means of a sensor system, and wherein the image excerpt of the video data stream is defined on the basis of the registered viewing direction. Further, the invention relates to a visualization system.

Abstract: An eye-tracking method includes enabling at least one light source of an array of light sources to emit non-visible light to illuminate an eye. The method also includes obtaining at least one image of the eye while the at least one light source is enabled. A position of the eye may then be determined based on a position of the at least one light source within the array of light sources in response to determining that the at least one image indicates a bright pupil condition when the at least one light source was enabled.

Abstract: System and method directed towards providing full and even illumination of a patient's retina through lighting integrated into a handheld fundus lens. By integrating the lighting, the method and system reduces and even eliminate many lens artifacts and reflections. By increasing the accuracy, quality, and field of view afforded during clinical examination of the retina, the method and system will allow practitioners to make more accurate diagnoses and will increase safety during retinal surgical procedures.

Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display augmented reality image content to the user. The display system can include one or more user sensors configured to sense the user and can include one or more environmental sensors configured to sense surroundings of the user. The display system can also include processing electronics in communication with the display, the one or more user sensors, and the one or more environmental sensors. The processing electronics can be configured to sense a situation involving user focus, determine user intent for the situation, and alter user perception of a real or virtual object within the vision field of the user based at least in part on the user intent and/or sensed situation involving user focus. The processing electronics can be configured to at least one of enhance or de-emphasize the user perception of the real or virtual object within the vision field of the user.

Abstract: An example apparatus for predicting eye fatigue includes an image receiver to receive an image of an eye. The apparatus also includes a fatigue predictor to predict eye fatigue in the eye based on a calculated blood vessel density score of the eye in the image. The apparatus further includes an alert generator to generate an alert in response to predicting the eye fatigue.

Abstract: A method for testing the eyes of a test person with the aid of a vision testing system as well as vision testing system, comprising a first measuring device, a second topographic measuring device, a third refractive measuring device and a processing means, an axial length (L) of an eye of the test person being measured with the aid of the first measuring device, a curvature of the cornea of the eye being measured with the aid of the second measuring device, a refractive property of the eye being measured with the aid of the third measuring device, a measurement simultaneously being carried out with the first, second and third measuring device at the eye, measurement data of the measurements of the first, second and third measuring device being processed with the aid of the processing means, said processing means presenting a database with normal data, a comparison of the measurement data with the normal data being carried out and a result of said comparison being issued by means of said processing means.

Abstract: An eye tracking device determines a user's gaze point on a display device and a setting for a foveated region associated with a fixation position, based on a first location of the fixation position. The eye tracking device defines at least one of a size, shape, or positioning of the foveated region relative to the fixation position. The eye tracking device determines a second location of the fixation position associated with a change of user gaze and changes the foveated region setting. At least one of the shape or size of the foveated region changes based on the eye tracking device determining that a distance difference between the first and second locations is larger than a threshold. At least one of the size or the shape of the foveated region is continuously adjusted based on the fixation position being in smooth pursuit between the first location and the second location.

Abstract: A system and method of detecting display fit measurements and/or ophthalmic measurements for a head mounted wearable computing device including a display device is provided. The system and method may include capturing image data including a face of a user to be fitted for the head mounted wearable computing device. A three-dimensional head pose and gaze measurements may be extracted and a three-dimensional model may be developed from the captured image data. The system may detect display fit measurements and/or ophthalmic fit measurements from the three-dimensional model, and may provide one or more head mounted wearable computing devices that meet the display fit and/or ophthalmic fit requirements.

Abstract: The present disclosure relates to a novel pupilometer and method of using the pupilometer to record and analyze direct and consensual reflex of pupils to identify brain lesion locations of a patient with brain injuries.

Abstract: A soft contact lens comprises a plurality of light sources coupled to a plurality of optical elements. The plurality of light sources and the plurality of optical elements are embedded in a soft contact lens material. Each of said plurality of optical elements generates an image focused in front of a peripheral retina of a wearer. In some embodiments, each of the images is focused at a distance in front of the peripheral retina at a location, and each of the images comprises a depth of focus and a spatial resolution. The depth of focus can be less than the distance, and the spatial resolution greater than a spatial resolution of the peripheral retina at the location.

Abstract: A fundus illumination system includes an array of light sources, a first optical combiner, and a second optical combiner. The array of light sources are configured to be selectively enabled to emit non-visible light to illuminate a fundus of an eye. The first optical combiner is configured to receive reflected non-visible light that is reflected by the eye, direct a first component of the reflected non-visible light to a first camera to generate an image of the eye, and pass a second component of the reflected non-visible light. The second optical combiner is configured to receive a fundus imaging light responsive to the second component of the reflected non-visible light, and to direct the fundus imaging light to a second camera to generate an image of the fundus.

Abstract: A macular health measurement and storage system comprises a plurality of macular-pigment measurement machine for measuring macular pigment density in humans, a plurality of computers each of which is associated with a corresponding one the macular-pigment measuring machines, and a central host. The plurality of macular-pigment measurement machines include a device for receiving macular pigment data from a patient, at least one data transfer port, and at least one processor that enables the transfer of the macular pigment data from the transfer port. The plurality of computers include a first port coupled to the data transfer port of the corresponding macular-pigment measurement machine for receiving the macular pigment data. Each of the computers includes a second port for transferring patient data. The central host is coupled to the second ports on each of the plurality of computers. The central host includes a storage device for storing the patient data.

Abstract: Method and contact lens (3) for measuring a subject's three dimensional eye movement including torsional movement. A video camera (1) is provided for recording an image of the subject's eye (2). The contact lens (3) is provided for placement over the subject's eye (2). The contact lens (3) comprises one or more markers (3a,3b) that are detectable by the video camera (1) and are positioned at a lateral offset (D) with respect to a central part (3p) of the contact lens (3). The one or more markers (3a,3b) are configured for detecting torsional rotation (R) of the subject's eye (2) around a line of sight axis (C) of the subject's eye (2) by using the video camera (1) to track a position of the one or more markers (3a,3b).

Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.

Abstract: The present invention discloses a method, apparatus and system for detecting a fundus image on the basis of machine learning. The method comprises: acquiring a fundus image to be detected; classifying the entire region of the fundus image by using a first classification model to determine whether the fundus image contains a first feature; and if the fundus image does not contain any first feature, classifying a specific region in the fundus image by using at least one second classification model to determine whether the fundus image contains any second feature, wherein the saliency of the first features are greater than that of the second features.

Abstract: In this patent, an improved eye tracking system is implemented for enhanced viewing. This system incorporates eye facing cameras and tracks display settings longitudinally and determines which portions of the image have been viewing and to what extent. A longitudinal dataset is generated and analyzed to better understand the human review process and cause improvements thereof. Furthermore, image review is enhanced by highlighting portions of the image that have not been adequately reviewed. Comparison across multiple reviewers is also performed to improve a user's performance.

Abstract: A system for visualization of eye anatomy includes at least one camera having a view vector along a first axis when in a first position, a housing to which the camera is coupled, wherein the housing engages the head of a patient such that the camera is positioned adjacent a patient's eye, and an actuator that moves the camera from the first position to a second position with a view vector along a second axis that is offset from the first axis. A method of visualization of eye anatomy includes engaging a patient's head with a housing, positioning at least one camera coupled to the housing adjacent an eye, wherein the camera has a view vector along a first axis when in a first position, and moving the camera to a second position with a view vector along a second axis offset from the first axis.

Abstract: A color correction mask programmatically generated in software on an HMD device is applied to a gaze region on a display field of view (FOV) on a head-mounted display (HMD) device to optimize system resources while rendering a display. Eye monitoring sensors are utilized to track movement of a user's eyes while the user operates the HMD device to determine a gaze position of the user's eyes on the display FOV. Using the determined gaze position, a dynamic foveal gaze region is sized around the gaze position so that the foveal portion of the display FOV is color-corrected, that is, color non-uniformities are reduced or eliminated. In other implementations, a gaze-based weighting mode is implemented in which measurements of the user's full eye or eye orbit are utilized to color correct a larger surface area of the display FOV relative to the foveal color correction mode.

Abstract: A system for testing and/or training the vision of a user is disclosed herein. The system includes a motion sensing device, a visual display device having an output screen, and a data processing device operatively coupled to the motion sensing device and the visual display device. In one embodiment, the data processing device is programmed to generate and display a configuration of a visual object on the visual display device during the same cycle of rotational head displacement when the actual head velocity or speed for the user reaches or exceeds a prescribed threshold percentage of the target velocity or speed. In another embodiment, the data processing device is programmed to increase a value of a prescribed amplitude or period for the head rotational displacement of the user for a successive trial of a test or training routine when a peak head velocity or speed is determined to have increased.

Abstract: A method, a device, and a computer program for determining at least one optical parameter of a spectacle lens, and a method for manufacturing the spectacle lens using the at least one optical parameter are disclosed. The optical parameter denotes a value for a property of the spectacle lens which is adjusted during manufacture of the spectacle lens to achieve an intended correction of ametropia of at least one eye of a user of the spectacle lens. The method includes: a) capturing at least one image of a user wearing the spectacle lens; and b) determining at least one optical parameter of the spectacle lens by image processing the at least one image, wherein the at least one image contains an eye portion including at least one eye and/or a face portion adjacent to at least one eye of a user of the spectacle lens.

Abstract: A small imager mounted on a user's eye (referred to as a femtoimager) is coordinated with an external camera. The femtoimager may be contained in a contact lens, and it may be aligned with the gaze a user's eye. The femtoimager and external camera capture images with overlapping views of the external environment. Images from the two imagers may be compared with one another to estimate the femtoimager's view of the external environment relative to the camera's view of the external environment. This may then be used for different applications.

Abstract: In a slit lamp microscope, ease of maintenance of an illumination-power-supply cable is improved while preventing the cable from appearing untidy. An illumination support arm of a slit lamp microscope is provided with a groove-shaped cable holder in which the illumination-power-supply cable is disposed along the outer surface of the illumination support arm in an externally exposed state. This configuration facilitates replacement of the illumination-power-supply cable even when a problem, such as breaking of the illumination-power-supply cable, occurs, thus improving ease of maintenance. Furthermore, because the illumination-power-supply cable is disposed along the groove-shaped cable holder, the slit lamp microscope has a neat appearance.

Abstract: Embodiments of the present disclosure provide a method and apparatus for processing a fundus image. The method may include: acquiring a target fundus image; dividing the target fundus image into at least two first image blocks; inputting a first image block into a pre-trained deep learning model, to obtain a first output value; and determining, based on the first output value and a threshold, whether the first image block is the fundus image block containing a predetermined type of image region.

Abstract: A sleepiness estimating device includes a biometric information acquirer that acquires biometric information of a person, an auxiliary information acquirer that acquires auxiliary information including at least one of five-sense information perceived by the person or emotion information indicating an emotion of the person, and a sleepiness estimator that estimates a sleepiness of the person based on the biometric information and the auxiliary information.