Vision test eye covering device for the ophthalmology department based on adjusting assembly

Abstract

The invention discloses a vision test eye covering device for the ophthalmology department based on an adjusting assembly, and relates to the technical field of medical instruments. The device comprises a head cap; a fixing ring which is fixedly connected outside the head cap; a plurality of supporting rods, which are the fixedly connected to the outer wall of the fixing ring in the circumferential direction. Mounting rings are fixedly connected to one ends of the supporting rods; the lower surfaces of the mounting rings are slidably connected with a plurality of eye covering mechanisms in the circumferential direction; every two adjacent eye covering mechanisms are attached to each other; each eye covering mechanism is composed of a supporting assembly and an eye covering assembly; the bottom of the supporting assembly is rotationally and movably connected with the top of the eye covering assembly. Through the design of a bidirectional threaded rod, a limiting groove channel, a sliding rod, a moving disc, a first spring, a first telescopic component and internal threaded plates, the distance between the two opposite internal threaded plates can be flexibly adjusted by rotating the bidirectional threaded rod, then the horizontal distance between the two eye covering assemblies is adjusted, and therefore vision testing of examinees with different distances between the two eyes is achieved, and the application range of the device is greatly expanded.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an ophthalmic vision testing eye shield based on an adjustment component. Background technique [0002] Vision is the ability of the retina to distinguish images. The quality of vision is determined by the ability of the retina to distinguish images. However, when the refractive media of the eye (such as cornea, lens, vitreous body, etc.) Eyes with a well-functioning retina can still lose vision. The opacity of the refractive medium of the eye can be treated with surgery, while the refractive errors need to be corrected with lenses. [0003] When performing vision testing, the eye plate and small hole vision shielding board are commonly used tools in vision testing. Patients need to cover the other eye with a blindfold in one hand, which will block the blood flow in the arm for a long time. , there is soreness, which makes it difficult for people to persist...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of ophthalmic eyesight test blind device based on adjusting assembly, through the design of blind mechanism, circular shield, small hole test lens, annular airbag, first positioning magnet and second positioning magnet, It solves the troublesome operation of the existing hand-held blinds for visual acuity testing, which can easily lead to sore arms. When performing small-hole vision testing, the subject needs to cover one eye with a blindfold and the other eye with a small hole. The blindfold is used to cover the eye, and then to detect it. This method is cumbersome to operate, and it is not convenient for small hole vision detection. The vision test process is easy to cause bacterial infection.

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