Visual chart convenient to adjust and move for ophthalmology department

Abstract

The visual chart comprises a box body, limiting mechanisms are arranged on the two sides of the two ends of the box body correspondingly, each limiting mechanism comprises a side plate and a vertical plate, the vertical plates are fixedly connected to the middle of the interior of the box body, lifting mechanisms are arranged on the side walls of the two ends of the box body correspondingly, and each lifting mechanism comprises a threaded rod; lifting mechanisms are arranged at the two ends of the exterior of the box body, each lifting mechanism comprises a first motor, the first motors are fixedly connected to the two ends of the top of the exterior of the box body, and a fixing frame is slidably connected into the box body. The marking rod is used for replacing the situation that a person needs to point to letters on a visual chart for detection during vision detection, the labor intensity of medical staff is reduced, when the marking rod points to the letters on the visual chart, the shielding rods and the shielding plates are used for shielding several rows of letters near the pointed letters, and vision detection of the detection staff is facilitated.

Description

Technical field: [0001] The invention belongs to the technical field of ophthalmic equipment, in particular to an ophthalmology eye chart that is easy to adjust and move. Background technique: [0002] In real life, eye charts are widely used in hospitals and schools as a testing tool for testing people's vision, and are used to test people of all ages who need vision testing. [0003] Under the prior art, in an ophthalmic easy-to-use eye chart with the patent No. 201810314422.4, the eye chart is adjusted by randomly pulling the eye chart placed in the placement slot to avoid the problem of personnel cheating, but this adjustment is very difficult. Simple, it cannot effectively avoid the cheating problem in vision testing, because the arrangement of each row is regular, and the user can still comprehensively judge the current orientation by comparing the distance between the nearest row and the approximate vertical distance. It is very inconvenient, inefficient, and inconve...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an ophthalmology eye chart that is easy to adjust and move in order to solve the above problems, which solves the problem that cheating cannot be effectively avoided during vision testing, and at the same time, when dealing with vision testing with more people in some schools, Very inconvenient, low efficiency, inconvenient to move and adjust, etc.

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