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Visual chart convenient to use for ophthalmology

An eye chart and ophthalmology technology, applied in the field of eye charts, can solve problems such as unfair test results and memory cheating, and achieve the effect of avoiding cheating and facilitating viewing

Active Publication Date: 2018-08-03
潍坊眼科医院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an easy-to-use eye chart for ophthalmology, which solves the problem that for people with good memory, memory cheating occurs when testing with the eye chart, which leads to test results unfair question

Method used

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  • Visual chart convenient to use for ophthalmology
  • Visual chart convenient to use for ophthalmology

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] like Figure 1-2 As shown in the figure, the present invention provides a technical solution: a handle 2 is fixedly connected to the back of the vision table main body 1, a pressing device 7 is fixedly connected to the bottom of the back of the vision table main body 1, and the back of the pressing device 7 is fixedly connected There is a push block 9, the left and right sides of the vision table body 1 are respectively fixedly...

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Abstract

The invention discloses a visual chart convenient to use for ophthalmology. The visual chart includes a visual chart body, the reverse side of the visual chart body is fixedly connected with a handle,the bottom of the reverse side of the visual chart body is fixedly connected with an extrusion device, the reverse side of the extrusion device is fixedly connected with a push block, and the left side and the right side of the visual chart body are fixedly connected with a first storage power supply and a second storage power supply respectively. Through cooperation of the visual chart body, thefirst storage power supply and a controller, the left side and the right side of the visual chart body are fixedly connected with the first storage power supply and the second storage power supply respectively, the right side of the first storage power supply is fixedly connected with a light source irradiator, the right side of the light source irradiator is fixedly connected with an irradiationlamp, and thus the light angle can be adjusted. The control over the first storage power supply and the second storage power supply is performed through the controller, and thus a vision board is viewed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an eye chart for ophthalmology that is easy to use. Background technique [0002] An eye chart is a chart used to measure vision. The visual charts used in China are: international standard visual chart, logarithmic visual chart and Langer's ring visual chart. In terms of function, there are near vision chart and distance vision chart. The eye chart is based on the principle of viewing angle. The inspection vision is generally divided into two categories: distance vision and near vision. The distance vision mostly adopts the international standard vision chart, which is composed of 14 lines of "E" characters with different openings and directions; -5.2); each line has a label, the subject's visual acuity chart operation method line should be parallel to the line of 1.0, 5 meters away from the visual acuity chart, and the visual acuity chart is designed according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/032
CPCA61B3/0008A61B3/032
Inventor 谢娟
Owner 潍坊眼科医院有限责任公司
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