Check patentability & draft patents in minutes with Patsnap Eureka AI!

Visual function testing device

A technology for functional inspection and visual field inspection, which is used in comprehensive refractometers, medical science, equipment for testing eyes, etc.

Inactive Publication Date: 2013-01-30
PANASONIC CORP
View PDF6 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The various visual function test devices used for visual function tests are composed of specifications dedicated to the inspection contents of various items such as vision and visual field, so there is no visual function that can test visual acuity, visual field, and binocular vision with one device Check device

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
  • Visual function testing device
  • Visual function testing device
  • Visual function testing device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0050] The visual function testing device shown as the first embodiment of the present invention performs a plurality of visual function tests in a state with both eyes open, which is a state close to the daily visual mode, and can evaluate the daily visual mode in various aspects. This visual function inspection device can perform a plurality of visual function inspections with one device. This visual function test is a test for a function for observing things, and is roughly divided into a subjective test and an objective test. Subjective examinations (self-sighted examinations) are frequently performed examinations in ophthalmology, such as visual acuity, visual field, and binocular vision examinations. On the other hand, the objective examination (examination by others) is performed when the patient is an infant or the like who cannot respond or is unreliable. Vision tests include binocular vision and monocular vision. The visual field test includes binocular visual fiel...

no. 2 approach

[0113] Next, a visual function inspection device according to a second embodiment will be described. In addition, the same code|symbol is attached|subjected to the same part as 1st Embodiment mentioned above, and the detailed description is abbreviate|omitted.

[0114] The visual function test device shown as the second embodiment is capable of performing visual function test of monocular vision, monocular visual field, and stereoscopic vision in addition to the visual function test device shown in the above-mentioned first embodiment.

[0115] like Figure 11 As shown, this visual function testing device is different from the above-mentioned visual function testing device in that the control device 1 includes an optotype image selection presentation unit 20 . In addition, in this visual function testing device, the optotype image generation unit 12 has a binocular optotype image generation function for generating an optotype image for each of the right eye and the left eye o...

no. 3 approach

[0132] Next, a visual function inspection device according to a third embodiment will be described. In addition, the same code|symbol is attached|subjected to the same part as the above-mentioned embodiment, and the detailed description is abbreviate|omitted.

[0133] In addition to the visual function testing device described in the second embodiment above, this visual function testing device can also perform visual function testing of binocular vision and eye position.

[0134] The binocular vision test is to evaluate whether the visual center (brain) can be used to perform single vision (single vision) on the images provided to the retinas of the left and right eyes. (sensory, motor), stereoscopic vision, retinal correspondence and other items are checked one by one.

[0135] Simultaneity refers to the ability to recognize the two images A and B as one image when the image A is viewed with the right eye and the image B is viewed with the left eye. In addition, stereoscopi...

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

A visual function testing device is provided with: a visual target image presentation unit (2) that presents visual target images; a visual target image rendering unit (13) that renders the visual target images presented by the visual target image presentation unit (2); a visual function test item selection unit (11) that selects visual function test items; a visual target image generation unit (12) that generates visual target images corresponding to the test items selected by the visual function test item selection unit (11); a viewing point distance input unit (14) that inputs the distance between the visual target image presentation unit (2) and an observer's viewing point; and a visual angle input unit (15) that inputs the angle formed between a visual target image and an observer's viewing point. On the basis of the viewing point distance inputted by the viewing point distance input unit (14) and the visual angle inputted by the visual angle input unit (15), the visual target image rendering unit (13) calculates the display size and display position of the visual target image corresponding to the visual acuity test or visual field test selected by the visual function test item selection unit (11), and renders a visual target image of the calculated display size and at the display position.

Description

technical field [0001] The invention relates to a visual function inspection device for performing multiple visual function inspections with one device. Background technique [0002] Conventionally, various visual function testing devices for testing visual function are known. There are many inspection items in the visual function inspection in ophthalmic medical care. As the inspection items, there are inspections of visual acuity and visual field, binocular vision inspection, eye position inspection, and the like. The various visual function test devices used for visual function tests are composed of specifications dedicated to the inspection contents of various items such as vision and visual field, so there is no visual function that can test visual acuity, visual field, and binocular vision with one device Check the device. [0003] As a visual function inspection apparatus, what is described in the following patent documents 1 and 2 is known, and the apparatus which...

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): A61B3/028A61B3/024A61B3/08
CPCA61B3/024A61B3/08A61B3/0091A61B3/032A61B3/028A61B3/02
Inventor 河村亮
Owner PANASONIC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com