18 results about "Examining eye" patented technology

This invention provides a subjective optometry information processing program and a subjective optometry system that allow users to appropriately understand the usage status of subjective optometry devices. [Solution] A subjective eye examination information processing program is executed by an information processing device that processes information related to a subjective eye examination device, wherein the subjective eye examination information processing program is executed by the control unit of the information processing device, causing the information processing device to execute: an eye examination information acquisition step of acquiring eye examination information indicating at least one of the content of the eye examination and the time of the eye examination by the subjective eye examination device; a status information generation step of generating status information indicating the usage status of the subjective eye examination device by processing the acquired eye examination information; and an output step of outputting the status information.

This invention provides a subjective optometry information processing program and a subjective optometry system that allow users to appropriately understand the usage status of subjective optometry devices. [Solution] A subjective eye examination information processing program is executed on an information processing device that processes information related to a subjective eye examination device, wherein the subjective eye examination device can perform either a self-eye examination mode in which the subjective eye examination is automatically carried out based on the answers entered by the subject, or a manual eye examination mode in which the examiner carries out the subjective eye examination according to the answers of the subject, and when the subjective eye examination information processing program is executed, the information processing device is made to perform an eye examination information acquisition step in which eye examination information in either the self-eye examination mode or the manual eye examination mode is acquired, a status information generation step in which status information indicating the usage status of the subjective eye examination device for each eye examination mode is generated by processing the acquired eye examination information, and an output step in which the status information is output.

This invention provides an optical coherence tomography (OCT) apparatus and a computer program for displaying tomographic images. The OCT apparatus is a polarization-sensitive type. It includes an imaging unit and a display unit, wherein the imaging unit captures tomographic images of the examined eye; and the display unit displays the tomographic images captured by the imaging unit. The tomographic images include at least two of the following: an image representing the tissue within the examined eye using scattering intensity; an image representing the distribution of melanin within the examined eye; an image representing the fiber density within the examined eye; an image representing the direction of fiber travel within the examined eye; and an image representing blood flow within the examined eye. The display unit superimposes at least two images from the same location on the same cross-section. Therefore, the state of the examined eye can be readily and comprehensively assessed.

Provided is a visual field estimation apparatus using a machine learning model that has been machine-trained so that, with respect to a plurality of eyes to be examined, at least one of image information of retina and three-dimensional structure information of retina is acquired at each of a plurality of time points, visual field related information relating to a visual field of the eye to be examined is acquired at a corresponding time point, at least one of the image information of the retina and the three-dimensional structure information of the retina regarding each of the eyes to be examined is input to the machine learning model as input information, visual field change information representing change of the visual field and obtained based on the visual field related information at the plurality of time points with regard to the corresponding eye to be examine is used as training information, and visual field change information estimated on the basis of the input information is output from the machine learning model.

An ophthalmic system is provided for performing eye examinations using an ophthalmic device under the supervision of an examiner. The ophthalmic system (1) comprises: an ophthalmic device (10) for eye examination, having a subject microphone (17) for acquiring sound and a subject speaker (16) for outputting sound; and multiple host devices (30) operated by the examiner, having an examiner microphone (34) for acquiring sound, an examiner speaker (33) for outputting sound, and an examiner monitor (32) for visual confirmation by the examiner. The ophthalmic device (10) and the multiple host devices (30) are able to communicate with each other. Each host device (30) displays the results of the eye examination on the examiner monitor (32) and outputs the sound acquired by the subject microphone (17) from the examiner speaker (33). The ophthalmic device (10) outputs the sound acquired by the examiner microphone (34) from the subject speaker (16).

An ophthalmic apparatus includes an objective lens, a first illumination optical system arranged approximately coaxially with an optical axis of the objective lens and configured to be capable of irradiating first illumination light onto an eye to be examined through the objective lens, a second illumination optical system arranged so as to be eccentric to the optical axis of the objective lens and configured to be capable of irradiating second illumination light onto the eye to be examined through the objective lens, a left-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a left-eye eyepiece or a left-eye imaging element, and a right-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a right-eye eyepiece or a right-eye imaging element. The second illumination optical system is capable of changing an incident angle of a principal ray of the second illumination light relative to the eye to be examined.

An ophthalmic device, its control method, and storage medium are disclosed. Highly reliable axial length measurement can be performed independently of the movement of the examined eye. An exemplary embodiment of the ophthalmic device performs a first optical coherence tomography (OCT) scan of a first region containing a first part of the examined eye and a second OCT scan of a second region containing a second part. The ophthalmic device aligns itself by acquiring first offset information of the examined eye before the first OCT scan and by acquiring second offset information before the second OCT scan. The ophthalmic device calculates the distance between the first and second parts of the examined eye based on the first data acquired through the first OCT scan and the second data acquired through the second OCT scan.

The utility model provides a kind of device of variable human eye inspection line of sight, including frame body and supporting device, the supporting device includes fixed cylinder, rotating ball, bottom plate and support plate, the support plate connects product body, the support plate connects limit block, the product body connects terminal;The fixed cylinder is equipped with threaded hole, the fixed cylinder connects adjusting assembly, the adjusting assembly includes threaded rod and extruding block, the extruding block is matched with rotating ball;The bottom plate connects needle mould.The utility model makes threaded rod and extruding block move by threaded rod rotation, to control the extrusion pressure of extruding block, so that staff adjusts the degree of difficulty of rotating ball rotation according to own preference, staff sends instruction to signal test box by controller, signal test box sends signal to needle mould by wire, needle mould makes product body display different picture by terminal, staff makes rotating ball rotate by rotating bottom plate, to adjust the position of product body.

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a mouse fixer for eye examination, which comprises a base, an adjustable cross bar, a head fixing clamp and a body fixing sleeve, the base is provided with a fixed lower jaw support and two base supports, the adjustable cross bar capable of being adjusted in height is arranged above the two base supports, the head fixing clamp is arranged above the adjustable cross bar, the head fixing clamp has a scissors type structure, a mouse is placed on the base, the lower jaw of the mouse is placed on the fixed lower jaw support, the body of the mouse is fixed on the base through the body fixing sleeve, and the ears of the mouse are clamped through the head fixing clamp. The utility model can meet the needs of fixing mice of different sizes, fix the head and not hinder the ophthalmic examination, and has the advantages of simple design and high practicability.

To provide a method for evaluating an individual's visual acuity using a computerized device.SOLUTION: Provided is a method for conducting a visual acuity test on a user, the method including: displaying information to a user using a computerized device; initiating a visual acuity test including a graphical interface into which the user provides input via a touch-sensitive field; determining distance information relating to a measured distance between the device and the user from an image of the user captured by a camera of the device; displaying a predetermined visual target for the user to view; displaying the visual acuity test without a refractive lens assembly; presenting spoken indications relating to the visual acuity test via a speaker; recording an identification content spoken by the user upon viewing the predetermined visual target via a microphone; performing voice recognition for the identification content spoken by the user to generate a converted string corresponding to the spoken identification content; and determining a score for the visual acuity test performed by the user on the basis of the converted string.SELECTED DRAWING: Figure 1

A method for the on-demand output of a hazard warning concerning an object located in a blind spot of the vehicle, in which a three-dimensional environment model of the vehicle is determined, which is coupled with image data from a driver observation camera, in the event of a hazard situation detected by the vehicle, the hazard warning is issued, and an area of ​​the object leading to the blind spot hazard warning is determined, characterized in that: reflections occurring in the cornea of ​​the driver's eye are determined by the driver observation camera and are represented in a predefined representation; the area of ​​the object leading to the blind spot hazard warning is superimposed with the representation depicting the reflections in the cornea of ​​the driver's eye; and the hazard warning is suppressed.when the area of ​​the object leading to the blind spot hazard warning is represented in the corneal area of ​​the eye, whereby, before suppressing the hazard warning, it is checked whether the object represented in the corneal area of ​​the eye is a vehicle.

An optical system is capable observing a peripheral field away from a visual axis and includes a reflection mirror unit forming an image of an examined eye with two concave mirrors in an opposing arrangement facing each other at the examined eye side, this being the upstream side, of a first optical unit and a second optical unit. In the reflection unit there is a conjugate relationship between one focal point thereof and another focal point thereof. By forming an image of the examined eye using the reflection unit a distance can be secured between the examined eye and the optical system and a wide range of the examined eye can be observed.

Disclosed is an eye examination apparatus for use with a smartphone or other portable electronic device. The eye examination apparatus has a body having a first eye opening and a second eye opening for a user to see into the eye examination apparatus using two eyes. In accordance with an embodiment of the disclosure, the eye examination apparatus has a coupling for receiving a smartphone having a display and a camera and for holding the smartphone in a predefined position in relation to the body, such that the camera of the smartphone is positioned to acquire ophthalmic images through the first eye opening, and the display of the smartphone is viewable through the second eye opening. In this manner, it is possible for the user to have an eye examination performed remotely outside of a clinician's office without specialized equipment by instead using their own smartphone.

Systems and methods for generating a Mixed Reality (MR)-based optical device (e.g., MR-based slit lamp and / or MR-based microscope) are provided. The system utilizes two red, green, and blue (RGB) cameras of the MR device, substituting for operator's eyes to observe through the eyepieces of a slit lamp biomicroscope or a conventional optical microscope. The operator, wearing an MR headset, observes a three-dimensional (3D) visualization of examined eye region or, in the case of a microscope, the sample. The system enables slit lamp examinations to be conducted in a manner suitable for telemedicine, allowing multiple users to simultaneously view real-time images from the slit lamp and / or a microscope.

This invention relates to the fields of ophthalmic medical devices and image processing technology, specifically disclosing a system and method for detecting corneal microlenses based on multimodal imaging. The system includes: an image acquisition module for acquiring corneal density maps, anterior surface elevation maps, and anterior segment OCT images of the examined eye after SMILE surgery; a data processing module for identifying focal areas with low corneal optical density values ​​within the expected lenticule removal area from the corneal density map as suspected microlenses (SRL) areas, and locating microbulges spatially related to the suspected SRL area in the anterior surface elevation map; a confirmation module for determining whether lamellar detachment and compensatory thinning of the superior tissue exist at the suspected SRL area based on the anterior segment OCT image, thus confirming the SRL; and a quantification output module for calculating and outputting the area of ​​the SRL, the number of corneal quadrants it occupies, and its morphological classification. This invention solves the problem of the lack of standardized methods for detecting microlenses after SMILE surgery in the prior art.

An ophthalmologic image processing device: acquires a data set comprising a plurality of image data that are image data for an eye under examination and are ordered in time series; divides the data set into a plurality of subsets demarcated by several reference times; obtains, for each of the subsets, first change-over-time information indicating the change over time, from the reference time, in the tissue of the eye being examined; and acquires second change-over-time information by connecting the respective first change-over-time information for the respective subsets. In analysis processing, each of the subsets is determined based on an evaluation value for the change between the respective image data in the data set, so that the respective subsets do not include image data uncorrelated with the image data for the reference time.

This disclosure relates to a multifunctional optical inspection instrument for eye examination. The multifunctional optical inspection instrument includes: a first optical component group comprising at least a front lens assembly and a rear lens assembly, arranged at a first predetermined position within the multifunctional optical inspection instrument to form a first optical path for imaging the fundus of the eye; a second optical component group arranged at a second predetermined position within the multifunctional optical inspection instrument to form a second optical path for refraction testing of the eye; and a first reflector disposed between the front lens assembly and the rear lens assembly and configured to be movable relative to a preset optical path conversion position, so as to convert the working optical path of the multifunctional optical inspection instrument into the corresponding first optical path or the second optical path. Using the solution of this disclosure, both eye imaging and eye refraction testing modes can be achieved with a single device, improving inspection efficiency.

This item is an image that displays information using a GUI. This GUI is an image that has the function of displaying the results of eye examinations in ophthalmology. Specifically, the image is divided into upper and lower sections, and the upper and lower sections display the results of the examination, such as a fundus photograph, a circular map showing the thickness of the retina, a cross-sectional image of the retina, and the reticular structure of the retina's blood vessels, respectively, and the image has the function of displaying the examination results in a way that allows comparison between the upper and lower sections. The roughly circular area on the left side of the image displays information related to the fundus photograph. The roughly square area on the left side of the center of the image displays information related to the circular map showing the thickness of the retina. Furthermore, the horizontal rectangle on the right side of the center of the image displays information related to the cross-sectional image of the retina. The roughly square area on the right side of the image displays information related to the reticular structure of the retina's blood vessels. When in use, it is displayed as shown in "Reference Figure 1 showing the usage state," and when it is a monochrome image in use, it becomes "Reference Figure 2 showing the usage state."