149 results about "Examining eye" patented technology

The invention discloses a small vision detection device for eye examination, and particularly relates to the technical field of vision detection devices.The small vision detection device comprises a device bottom plate, a vision detection mechanism is arranged at the top of the device bottom plate and comprises a first moving plate, and the first moving plate is arranged at the top of the device bottom plate; the top of the first moving plate is fixedly connected with a moving mounting plate, and a display screen is mounted on the front side of the moving mounting plate. By arranging the vision detection mechanism and the adjusting mechanism, the comprehensiveness of vision detection is improved, the vision definition is detected, the type and degree of refractive errors such as myopia, hyperopia and astigmatism can be accurately diagnosed through a diopter test, whether a vision problem exists or not is determined, and the vision detection accuracy is improved. Meanwhile, some eye diseases possibly influencing vision can be indirectly found through intraocular pressure testing, retina injury and vision loss caused by too high intraocular pressure can be prevented by monitoring changes of the intraocular pressure, the examination effect is good, and vision detection is more comprehensive.

The invention discloses an eye examination device with a postoperative care eyelid supporting function, and belongs to the technical field of eye examination.The eye examination device comprises an eyeshade type frame, a tightening belt, a shell, an examination base, an examination module, an eyelid dilator and the like, stable wearing can be achieved through the tightening belt, the position of the examination module is adjusted through a micro electric push rod, and the eyelid dilator is arranged on the shell; an upper eyelid supporting piece and a lower eyelid supporting piece of the eyelid dilator achieve accurate dilation by means of the SMA driving dilator, a contact air bag on an arc-shaped silica gel supporting pad can adjust contact pressure through a pneumatic adjuster, a piezoelectric ceramic vibrator can assist in tear adjustment and muscle relieving, a liquid absorber can treat redundant tears, and the device integrates a control module and various detection modules and is convenient to use. The eye protection device can monitor the eye state in real time and trigger a protection mechanism, provides safe and comfortable support and nursing for postoperative patients while completing eye examination, and is suitable for ophthalmologic postoperative examination and rehabilitation assistance.

Systems, devices, and methods for detecting a visual indicator of an occluder for an eye examination are provided. In one example, a device may be used to administer an eye examination by detecting, via a camera of the device, a visual indicator located on an occluder while the occluder is covering at least a portion of a user's face. The device can configure a graphical user interface to display, at a display screen of the device, an eye examination administered to the user. The device can output, via the display screen, a result of the eye examination based on information encoded by the visual indicator. In some implementations, the detecting may include detecting an opaque surface of the occluder covering an eye of the user. In some implementations, the detecting may include detecting a lens of the occluder covering an eye of the user.

The invention belongs to the technical field of ophthalmic examination supports, and particularly relates to a multi-degree-of-freedom quick-release adjusting support for an ophthalmic examination lens, and the multi-degree-of-freedom quick-release adjusting support comprises a tightening mechanism and a first spherical universal joint mounted at one end of the tightening mechanism, and one end of the first spherical universal joint is connected with a first joint cylinder; the other end of the first joint cylinder is connected with a mechanical main arm, the other end of the mechanical main arm is connected with a rotating cylinder, the spherical universal joint structural design is adopted, 360-degree multi-direction accurate adjustment of the lens support can be achieved, a doctor can flexibly control the position of a lens only through simple hand operation, rapid and accurate positioning is achieved, the operation is simple, and the working efficiency is improved. The support is convenient to operate and compact in structure, has a reliable locking function, can effectively guarantee the stability of the lens after being adjusted, can be rapidly matched with ophthalmic examination lenses of different specifications, and effectively improves the operation convenience and examination accuracy in the eye examination process.

The invention relates to the technical field of ophthalmology nursing early warning, and discloses an ophthalmology nursing risk early warning system and method based on artificial intelligence assistance. The system comprises a data acquisition module, a data preprocessing module, an artificial intelligence model training module, a risk early warning module and a medical care interaction module. The data acquisition module is used for acquiring multi-source information such as vital signs, eye examination, medication conditions and environment of a patient; the data preprocessing module performs cleaning, normalization and feature extraction on the acquired data; the artificial intelligence model training module uses the preprocessed data to train a nursing risk prediction model and assess performance; the risk early warning module analyzes the current state of the patient, generates a risk prediction result and triggers early warning according to levels; the medical care interaction module provides an interface and supports medical staff to inquire data, obtain decision suggestions and input feedback information so as to optimize the system. The system integrates multi-source data, realizes risk early warning through intelligent analysis, and assists the improvement of an ophthalmology nursing process.

Clinical-quality eye examinations are provided at locations remote from the physician and outside of a clinical setting. A portable optical device and corresponding software are delivered to the patient's location. The portable optical device is configured for patient use in self-conducting an eye or vision exam and taking optical measurements. As a function of type of optical measurement data or health consideration of the patient, the corresponding software provides uploading and live streaming of the optical measurement data to the physician. The corresponding software is executed during the patient conducting the eye (vision) exam and enables the remotely located physician, to participate in the same via video conference. Alternatively, an artificial intelligence resource operating remotely or locally can provide physician-type guidance and eye health assessments. Alignment of device and patient eyes can be facilitated for remote exams.

A fundus imaging apparatus includes two or more curved mirrors, an illumination optical system, an image sensor, and a controller. The illumination optical system irradiates slit-shaped illumination light onto a fundus of an eye to be examined through the two or more curved mirrors, and illuminates the fundus while moving an illumination region. The image sensor is arrangeable at a fundus conjugate position substantially conjugate optically to the fundus, and receives returning light from the eye to be examined. The controller controls at least the illumination optical system. A longitudinal direction of an image formed by the illumination light on the fundus is approximately parallel to a plane including two or more focal points of the two or more curved mirrors. The controller controls the illumination optical system so that the image described above moves in a direction intersecting the longitudinal direction on the fundus.

An ophthalmic information processing apparatus includes an acquisition unit, a segmentation processor, and a display controller. The acquisition unit is configured to acquire an OCT image and one or more tomographic information images. The OCT image is a tomographic image of an eye to be examined. The one or more tomographic information images are generated using a method different from a method of generating the OCT image and represent tomographic information of the eye to be examined. The segmentation processor is configured to perform segmentation processing on the OCT image to identify a boundary of a layer region in a depth direction. The display controller is configured to display the OCT image, in which the boundary identified by the segmentation processor is distinguishably depicted, and the one or more tomographic information images on a display means.

The invention pertains to a capture device (1) comprising an infinity mirror (4) configured to create an infinity optical effect to a person (2) and a camera (3) for capturing an image of an eye (20) of the person. The invention further pertains to an ocular examination system for examining the eye and to an ocular recognition system for identifying a person based on visual inspection of the eye, the ocular examination system and the ocular recognition system comprising such a capture device. The invention further pertains to a humanoid robot comprising the examination system and / or the ocular recognition system, wherein at least one eyeball of the of the humanoid robot at least partially comprises the capture device.

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.

Optical coherence tomograph for examining an eye (3) which features: - a lighting device (4, 5) for providing source radiation, - an illumination and measurement beam path (7) comprising a splitting element (6) for splitting the source radiation into illumination radiation (B) and reference radiation (R), with the illumination radiation (B) illuminating an illumination field in the eye (3) and collecting backscattered illumination radiation in the eye (3) as measurement radiation (M), wherein the illumination and measurement beam path (7) comprises a scanner (13) for adjusting the lateral position of the illumination field in the eye (3) and a front optic (12), - a reference beam path (8) which provides for the reference radiation (R) an optical path length (21) corresponding to an optical path length from the splitting element (6) to the illumination field and back to a superposition point (71), - a detection beam path (14, 15, 17) which receives the measuring radiation (M) from the illumination and measuring beam path (7) and the reference radiation (R) from the reference beam path (8) and superimposes them at the superposition point (71) and directs them onto a detector (19), - the illumination and measuring beam path (7) further exhibits - a beam splitter (11) for separating the measuring radiation (M) collected by the eye (3) from the illumination radiation (B) directed to the eye (3), wherein the beam splitter (11) directs the separated measuring radiation (M) to the detection beam path (14, 15, 17), and - a light splitting element (32, 34) that splits the illumination radiation (B) into spots in order to illuminate the retina (2) with a multi-spot pattern, characterized in that - the lighting device (4, 5) is tunable with respect to the wavelength of the source radiation, - the detector is an area detector (19), - the detection beam path further - an optical element (14) acting only on the measuring radiation (M), which interacts with the front optics (12) and adjusts the numerical aperture with which measuring radiation (M) is collected in the eye (3), and - an aperture (15) which is arranged in front of the area detector (19), in or near an intermediate image plane and which defines the size of an object field from which the measuring radiation (M) reaches the area detector (19), and - wherein the aperture prior to the area detector is designed as a first multi-hole aperture (15) and a first multi-lens array (36) is arranged between this multi-hole aperture and the area detector (19), which focuses the radiation emanating from each hole of the first multi-hole aperture (15, 15a, 15b) onto a pixel area of ​​the area detector (19) which has a spatial resolution of 4 to 100 pixels in one direction, preferably as a 2D pixel area with 5 to 50 pixels or 5 to 40 pixels per direction.

To provide a fixation target for guiding the direction of a subject eye with a simple constitution.SOLUTION: An ophthalmologic apparatus includes an imaging part (14) containing an optical scanner for irradiating a subject eye with imaging light, a fixation part (29) including a fixation light scanner for projecting a fixation target onto the subject eye via the optical scanner, and a control part (16) for driving the optical scanner and the fixation light scanner so that the fixation target is continuously projected to a first position of the subject eye, and that a first area of the subject eye is scanned with imaging light.SELECTED DRAWING: Figure 2

The invention relates to the technical field of eye examination, in particular to an eye examination auxiliary device which comprises supporting legs, a supporting frame is fixedly mounted at the top ends of the supporting legs, a supporting table is fixedly mounted at the top end of the supporting frame, an optometry unit body is arranged at the top end of the supporting table, and handrails are symmetrically and fixedly mounted on the side wall of the supporting table. By controlling the rotating direction of the motor, the height of the bottom support can be automatically adjusted, a to-be-inspected person can align two eyes to the optometry window conveniently, the adjusting mode is simple, compared with manual adjustment, the operation time can be saved, the adjusting efficiency can be improved, meanwhile, the worm gear and the worm can be lubricated, abrasion between the worm gear and the worm can be reduced, and the working efficiency is improved. The installation and disassembly mode of the optical lens fixed through cooperation of the spring and the clamping piece is simple, the optical lens on the installation frame can be conveniently taken down to be cleaned, use of the optical lens can be guaranteed, and the situation that the optical lens is dirty and influences the optometry effect is avoided.

A scanning laser ophthalmoscope capable of obtaining visible light images and fluorescent images of the ocular fundus includes a visible light source; an infrared light source; a scanner configured to irradiate measurement lights onto a desired location on the ocular fundus of an eye to be examined in sequence; a beam splitter configured to separate the paths of the measurement lights and the reflected light; and a light detection unit for detecting the reflected light. The light detection unit includes a red light separation mirror; a red light detection unit; a green light separation mirror; a green light detection unit; a variable filter; and a blue light and fluorescence detection unit.

This invention provides an ophthalmic optical device that eliminates the need to place a separate lens attachment between the objective lens and the eye under examination by changing the working distance between the objective lens and the eye under examination when observing the posterior segment and when observing the anterior segment. [Solution] In the ophthalmic optical device, when photographing the posterior segment of the eye under examination, a position conjugate to the vertical scanning unit is formed in the anterior segment of the eye under examination, and the scanning beam from the vertical scanning unit is focused on the posterior segment of the eye under examination. When photographing the anterior segment of the eye under examination, the working distance, which is the distance between the eye under examination and the objective lens, is greater than the working distance when photographing the posterior segment, and the scanning beam from the vertical scanning unit is focused on the anterior segment of the eye under examination. The scanning direction of the scanning beam by the vertical scanning unit is the same when photographing the posterior segment and when photographing the anterior segment.

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.

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

The invention discloses a method and a system for collecting and splicing images. The method comprises the following steps of: aligning incident light to a pupil of an examined eye; controlling the incident light to be incident to the fundus position of the examined eye through galvanometer scanning, and collecting the fundus image of the examined eye corresponding to any fundus position; for the obtained current eye fundus image, registering the current eye fundus image with a reference eye fundus image to obtain a first displacement of the current eye fundus image relative to the reference eye fundus image; obtaining the position of the current fundus image according to the first displacement and the position of the reference fundus image; in the scanning process of the galvanometer, the fixation position of the eye to be inspected is changed, and the steps S1 and S2 are executed again; and S3, repeating the step S3 to obtain a plurality of fundus images in different fields of view, and performing image splicing according to the positions of the plurality of fundus images to obtain a spliced fundus image. In this way, large-view-field imaging of the fundus of the examined eye can be achieved, and compared with the prior art, the image acquisition and image post-processing processes can be simplified.

1. The name of the design product: Eye treatment assistance tool (Munan). 2. The use of the design product: An assistance tool used for eye examination and treatment, which can magnify the eyes and stabilize the eyelids by pressing around the eyes through this tool. 3. The design key points of the design product: lie in the combination of shape and pattern. 4. The picture or photo that best shows the design key points: the perspective view. 5. The bottom view is omitted as it has been expressed in the views.

The invention relates to an aberrometer (8) for examining an eye (2) and for detecting wavefronts (7), the aberrometer comprising a device (9) having a light source for emitting light beams (1a, 1b) onto at least one scanning point (4a, 4b) of the retina (5) of the eye (2), wherein the device (9) comprises a detection unit (10) for detecting light beams (1a, 1b) reflected by the scanning point (4a, 4b) of the retina (5). The object of the invention is that of specifying an aberrometer by means of which aberrations can be detected particularly reliably and without problems. The invention is characterised in that the device (9) is designed as an OCT device for taking OCT images by means of optical coherence tomography, wherein the detection unit (10) records temporally successive scanning points (4a, 4b) and wherein a processing unit (11) is provided which is arranged in order to determine, from the optical data from the scanning points (4a, 4b), phase deviations in order to describe, by means of approximation on a model function, on the basis of the phase deviations, wavefronts (7) or wavefront deformations.

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).

The head-mounted eye covering instrument comprises a head-mounted fixing part, an attaching plate, an eyeshade and a connecting rod, the attaching plate is connected with the head-mounted fixing part so as to be capable of being worn on the head of a patient and attached to the brain part, one end of the connecting rod is connected with the attaching plate, the other end of the connecting rod is connected with the eyeshade, and the connecting rod is connected with the eyeshade. The connecting rod can move in the length direction relative to the attaching plate so as to drive the eyeshade to shield the eyes of different parts of the patient, the position of the eyeshade can be adjusted at will, the eyeshade is suitable for the eye positions of different patients, use is more convenient, and the eye shielding instrument can be worn on the head when eye examination is conducted on the patient and taken down when no examination is conducted. And the device can be directly disinfected and cleaned for repeated use, so that the use of disposable medical consumables is reduced, and the examination cost is saved.

A photorefraction vision screening device for examining visual diseases by performing pupil detection and refraction test of the eye includes a measurement light irradiator configured to irradiate measurement light to an eye to be examined; a measurement light controller configured to control light-emitting elements of the measurement light irradiator; an image detector configured to detect an image formed on the retina of the eye to be examined by the measurement light having been irradiated from the light-emitting elements of the measurement light irradiator and having passed through the pupil of the eye to be examined; and a calculation part configured to calculate refractive power of the eye to be examined based on the image of the measurement light detected by the image detector.

A system for controlling at least one vision screening device configured to communicate according to a first communication protocol, includes: a control module configured to communicate according to a second communication protocol; for each device, a hardware key configured to be connected to the device and to the control module, and to ensure communication between the device and the control module through conversion of the first communication protocol and of the second communication protocol; the control module being configured to control each device, to receive data from each device via the corresponding hardware key and to process the received data.

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.

1. Name of the product in this design: Adjustment Inspection and Training Auxiliary Device. 2. Purpose of this design: An auxiliary tool for training and examining eye accommodation ability. 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.