Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Edge visual field training equipment and method based on visual field center damage

A vision center and training equipment technology, which is applied in the direction of eye exercisers, instruments, character and pattern recognition, etc., can solve problems such as difficult recovery, and achieve the effect of improving vision and improving the effect.

Active Publication Date: 2020-12-04
杭州集视智能科技有限公司
View PDF19 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, central visual field damage mainly caused by optic neuropathy and macular disease has become the main cause of irreversible vision damage for the visually impaired in my country, and it is difficult to recover through surgery and treatment; the market needs a visual field compensation for central visual field defects Visual training apparatus and training method, the present invention solves such problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Edge visual field training equipment and method based on visual field center damage
  • Edge visual field training equipment and method based on visual field center damage
  • Edge visual field training equipment and method based on visual field center damage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A peripheral visual field training method based on invisible vision of the left eye and a damage range of 0.6° in the center of the visual field of the right eye. The specific implementation method is as follows:

[0074] Measure the damage range of the central visual field of the patient's right eye. The patient's left eye is invisible, and the central damaged visual field of the right eye is within 0.6°, and the area can still be gazed at the parafoveal area; the visual acuity of the left eye is X +0.9°, θ Y The position is -1.1°, the patient's training distance is 1m according to the screen display, calculated according to the formula:

[0075] △X=1000×tan 0.9°=15.7mm;

[0076] △Y=1000×tan 1.1°=19.2mm;

[0077] According to the angle drop point, △X is negative movement, and △Y is positive movement. Set the screen position of the auxiliary guide icon to change from △X axis to -15.7mm, and to change from △Y axis to +19.2mm. The screen image will be processed to reduc...

Embodiment 2

[0079] A peripheral visual field training method based on binocular visual field center damage, the specific implementation process is as follows:

[0080] Measure the damage range of the central visual field of the left and right eyes of the patient respectively. The damage to the central visual field of the left eye is slightly less, and the range is within 0.3°, and the parafoveal gaze area can still be used; the damage range of the central visual field of the right eye is within 2.3°, and the paramacular gaze is required. area; the residual visual acuity of the left eye is 0.8, and the residual visual acuity of the right eye is 0.6; for patients with central damage in both eyes, the better eye is preferentially trained, and the best retinal fixation point of the left eye is measured, θ X Position +0.5°, θ Y It is +0.4°, the patient's training distance is displayed at 1m according to the screen, and the screen image is processed to reduce the contrast, calculated according ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses edge visual field training equipment based on visual field center damage. The edge visual field training equipment comprises an eye scanning equipment for inputting a picture,a camera for acquiring an external real-time image, an electronic screen for displaying the external real-time image picture to a patient, an eye sensor for monitoring the eyeball rotation angle and the holding time of the patient, a control handle for adjusting the picture, and a processor connected with each part and used for processing data. According to the equipment, the problem of central visual field defect is improved through the electronic image training equipment with the edge visual field, retina fixation point displacement is carried out on an original image obtained in the centerof the eyes of a patient with central visual field defect by means of the external equipment with an electronic screen, and the patient is trained by adopting reading practice or line-graph tracking practice to form special eye position observation, the formed image deflects to the edge visual field, the eye sensor is synchronized to acquire the corresponding correction feedback value and an auxiliary guide system and the image contrast parallax are adjusted to form benign correction, so that the visual field of the patient is obviously improved.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to peripheral visual field training equipment and a training method based on visual field center damage. Background technique [0002] Different patients with visual impairment have different etiologies, and their manifestations of impairment are also different, and specific to each patient, their needs for visual rehabilitation are quite different. As far as visual impairment rehabilitation is concerned, it is much more difficult for patients with central visual field defects to recover than patients with simple low vision. [0003] Central visual field defects mainly manifest as blind spots around the center or next to the center, central blind spots with decreased visual acuity, and rare visual field narrowing, which can lead to central metamorphopsia and even loss of vision in severe cases, resulting in varying degrees of visual disability and affecting the quality of life of pa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61H5/00G06K9/00G16H20/30
CPCA61H5/005A61H5/00G16H20/30A61H2205/024G06V40/19
Inventor 童晓煜顾钊铨陈达孟祥玉王跃宣徐默
Owner 杭州集视智能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com