Vision detection device

Abstract

The invention discloses a vision detection device, which comprises a box body; two sides of the box body are provided with rotary knobs; one side of each rotary knob is provided with a fixing belt; a contraction belt is arranged between the two fixing belts; the upper surfaces of the two fixing belts are provided with contraction rubber belts; the inner sides of the fixing belts are provided with cotton; and a control box is arranged on the upper surface of the box body. According to the invention, through arrangement of the box body, a vision measurement screen and an eye protection frame, the rotary knob is rotated; the eye protection frame is worn in front of eyes of a user through the fixing belt and the contraction belt; the vision measurement screen in the box body is opened; a vision test table can be displayed on the surface of the vision measurement screen; the user can test the vision by watching the vision test table and reporting the content on the vision test table; and the vision test can be completed in a ward without going to a special vision test place for some hospital users who are inconvenient to move.

Description

technical field [0001] The invention belongs to the technical field of vision detection, and in particular relates to a vision detection device. Background technique [0002] Eyesight testing is an important means to reflect eyesight in medicine. The traditional vision testing method is that the inspector specifies each visual mark of the eye chart box for the examinee to distinguish the opening direction, and the smallest eye chart box that the examinee can correctly identify Each optotype gives its visual acuity. In this method, the inspector must directly participate, the work intensity is high, and unconscious hints may also affect the inspection results, so human factors have a greater influence, and the test results are prone to errors. In the prior art, when testing vision, It is usually tested by watching the eye chart. In some special cases, it is difficult for people who are bedridden and inconvenient to move to test their own vision. Because they cannot move, fam...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the existing defects and provide a vision testing device to solve the problem that it is inconvenient for some hospital users who are physically inconvenient to move to perform vision testing in the above background technology

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