Ophthalmology Active Vision Chart

Abstract

The invention relates to an ophthalmic movable eye chart, which belongs to the technical field of vision testing. The ophthalmic movable eye chart of the present invention comprises a frame body and a box body, a lifting movable frame is arranged on the upper side of the frame body, a supporting horizontal frame is arranged on the upper side of the lifting movable frame, and a vertical adjustment corrector is arranged on the right side of the supporting horizontal frame, The right side of the longitudinal adjustment corrector is equipped with a horizontal adjustment corrector, and the right side of the horizontal adjustment corrector is equipped with a box supporting and fixing frame. The box is provided with a vision detection strap, the left side of the vision detection strap is provided with an optotype detection table, the upper side of the vision detection strap is provided with a conversion drive drum, and the lower side of the conversion drive drum is provided with a lighting backlight panel. The invention has comprehensive functions, convenient adjustment and use, and convenient operation, and can normally perform vision tests on different types of patients in various environments, can effectively improve the accuracy of vision test results, and greatly improve the work efficiency of ophthalmic medical personnel.

Description

technical field [0001] The invention belongs to the technical field of visual acuity testing, in particular to an ophthalmic movable visual acuity chart. Background technique [0002] The full name of ophthalmology is "eye disease specialist". Ophthalmology is a discipline that studies diseases that occur in the visual system, including the eyeball and its associated tissues. Common ophthalmic diseases include: central serous retinopathy, dry eye syndrome, and sympathetic ophthalmia , night blindness, blindness, amblyopia, astigmatism, trachoma, cataract, diabetic retinopathy, conjunctivitis, presbyopia, color blindness, heterochromia, retinitis pigmentosa, central retinal artery occlusion, retinal detachment, myopia, hyperopia, needle eye, snow blindness, Chalazion, glaucoma, floaters, etc. An eye chart is a chart used to measure vision. The eye charts used in China include: international standard eye chart, eye chart logarithmic eye chart, etc. Functionally, there are n...

AI Technical Summary

Problems solved by technology

Existing patients perform vision tests in a standing state, but it is difficult for frail patients to stand for a long time, which makes it difficult for frail patients to perform vision tests normally, and the existing vision test devices all adopt fixed structures, which are difficult to Adjustment, resulting in the inability to obtain accurate vision test results, which seriously affects subsequent diagnosis and treatment, is not conducive to the patient's health, and needs to use different eye charts to test the red, green, astigmatism and other visual targets of the patient. It is very inconvenient, so it is urgent to develop a vision testing device with comprehensive functions, easy adjustment and use, and the ability to perform vision tests for different patients.

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