109 results about "Examining eye" patented technology

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.

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.

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.

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.

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.

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).

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.

An aberrometer (8) for examining an eye (2) and for detecting wavefronts (7), comprising a device (9) with a light source for emitting light rays (1a, 1b) onto at least one scanning point (4a, 4b) of the retina (5) of the eye (2), wherein the device (9) has a detection unit (10) for detecting the light rays (1a, 1b) reflected from the scanning point (4a, 4b) of the retina (5), is characterized, with regard to the task of providing an aberrometer with which aberrations can be detected particularly reliably and easily, in that the device (9) is designed as an OCT device for acquiring OCT images by means of optical coherence tomography, wherein the detection unit (10) acquires scanning points (4a, 4b) successively and wherein a processing unit (11) is provided which is configured to process the optical data of the scanning points (4a, 4b) To determine phase derivatives,to describe wavefronts (7) or wavefront deformations using the phase derivatives by approximating them to a model function.

An eye examination apparatus comprising: a virtual reality device (104) configured to be worn on a user's head (102), the virtual reality device having a housing (203) containing a lens (208) and a display (214) operable to display an image (216) to an eye (202) of the user; and a long-pass filter (204) arranged between the lens (208) and the eye (202) for examining the eye's ability to see the image (216), the long-pass filter (204) having a first transmission region (226) that transmits a visible light (218) and a near-infrared light (220) to the eye (202) and a second transmission region (228) that transmits the near-infrared light (220) and blocks the visible light (218).

An ophthalmic apparatus includes two or more curved mirrors, an illumination optical system, and a photographic optical system. The illumination optical system includes a slit with an aperture configured to be disposed at a fundus conjugate position, the fundus conjugate position being substantially conjugate optically to a fundus of an eye to be examined, and is configured to irradiate slit-shaped illumination light, that is generated by irradiating light from a light source onto the slit, onto the fundus through the two or more curved mirrors. The photographic optical system includes an image sensor configured to be disposed at the fundus conjugate position and to receive returning light from the eye to be examined through the two or more curved mirrors. The aperture is formed so that a width in a shorter direction differs depending on a position in a longitudinal direction.

This invention provides a subjective eye examination system and a subjective eye examination method that can appropriately register the settings of a subjective eye examination device. [Solution] A subjective optometry system equipped with a subjective optometry device comprises a first device capable of creating settings for setting the control operation of the subjective optometry device, and a second device which is a subjective optometry device capable of registering the settings, wherein the first device and a plurality of the second devices are connectable to a storage unit that stores the settings, and the first device performs a setting storage step of creating settings and storing them in the storage unit, and the second device performs a setting registration step of inputting at least a part of the settings stored in the storage unit and registering them as its own settings.

The utility model discloses an external shading device for an outdoor eye examination machine, which belongs to the technical field of machine shading and comprises a shading cover, and rotating shafts are fixedly mounted on two sides of the shading cover. Positioning vertical plates used in cooperation with the light shield body are further installed on the two sides of the light shield body, and a positioning transverse plate supported above the eye inspection machine is fixedly installed on one side of each positioning vertical plate; the light shield body is rotationally mounted in a rotating hole above the positioning vertical plate through a rotating shaft; the light shield body is a transparent cover, an insertion groove is formed in the light shield body, a non-transparent light shield thin plate is detachably connected in the insertion groove in an inserted mode, and the light shield thin plate can shield light from the top and the two sides of the light shield body. The device is used for outdoor shading of an eye examination machine, such as an optometry unit, the device is additionally arranged above the optometry unit, the accuracy of eye exposure can be improved, the device is easy to install, the shading intensity of the shading cover body can be changed by replacing shading thin plates with different light transmittances, and the device is very flexible and convenient to use.

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 invention relates to the technical field of eye detection, and discloses a cornea contact cap assembly for eye detection, the cornea contact cap assembly comprises a protection mechanism and a driving mechanism, the arranged protection mechanism can carry out risk protection on eyes of a patient in the eye detection process of the patient, the damage to the eyes of the patient due to movement is avoided, and the safety of the patient is improved. Meanwhile, the microscope is driven to perform the same movement according to the movement distance of the patient, the detection effect is prevented from being affected by excursion of the examination position, the arranged driving mechanism can prevent the cornea contact cap from performing high-strength compression on one vertex of an eyeball to the maximum extent when the eyes of the patient are examined, the detection end abutting against the eyes is concave, and the detection effect is improved. The cornea contact cap is attached to the eyeball, the abutting pressure of the eyeball is reduced, meanwhile, the eye state of the eyeball in the normal state can be observed more clearly, the adaptability of a patient is improved, meanwhile, the arranged driving mechanism can prevent a doctor from repeatedly smearing a new cornea contact cap, and the bacterial infection risk is reduced while the working efficiency is improved.

An eye-examining apparatus for diagnosing myopia capable of simultaneously measuring the corneal curvature, refractive power, and axial length of the eye to be examined includes a keratometer; a refractometer including an infrared measurement light source, a lens array, and a refractor sensor; an axial length measurement unit including a beam splitter, a reference mirror, and a light detector; and a computation unit configured to calculate the corneal curvature, refractive power, and axial length of the eye to be examined.

The utility model belongs to the technical field of medical equipment, and discloses an eye examination treatment chair which comprises a treatment chair body. According to the treatment chair body, a chair back is arranged on one side of a seat plate, and the seat plate is rotationally connected with the chair back; an adjusting assembly is arranged at the bottom of the seat plate and comprises a fixing groove formed in the bottom of the seat plate; the pulleys are arranged at the bottom of the seat plate and penetrate through the fixing grooves, and sliding rails matched with the pulleys are arranged on the fixing grooves, so that the seat plate is in sliding connection with the fixing grooves; the fixing assembly is arranged on the fixing groove; the supporting assembly is arranged between the fixing groove and the chair back; the base is arranged at the bottom of the fixing groove; the universal wheels are arranged at the bottom of the base, the medical staff can conveniently treat the eyes of the patient through the adjusting assembly, and therefore the working efficiency of the medical staff is improved.

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.