Human eyesight measuring apparatus and method thereof

A measuring device and visual acuity technology, applied in retinoscopy, eye testing equipment, medical science, etc., can solve the problems of mixed subjective factors of the main tester, inaccurate measurement results, inability to measure visual acuity, etc., and achieve accurate non-graded visual acuity measurement , Realize the effect of information management and visual acuity measurement science
CN1843286AInactive Publication Date: 2006-10-11深圳市亮睛医疗设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
深圳市亮睛医疗设备有限公司
Publication Date
2006-10-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a device for measuring eyesight, comprising: a visual target showing device; a device for reading reaction of measured people; control device, used to control visual target showing device to show visual target and calculate measure result according to measured people 's reaction. The device enables eyesight measurement to be taken automatically. Furthermore, the invention applies modern psycho-physics to eyesight measurement, and offers non-grade measurement. The said control device controls visual target showing device to show visual target and calculates result according to psycho-physics, so the measurement result is more accurate.
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Description

technical field

[0001] The invention relates to a measuring device in medicine, in particular to a human eye vision measuring device. Background technique

[0002] Visual acuity measurement is the most basic measure of human visual function, and is widely used in ophthalmology diagnosis, optometry, career choice and traffic safety. The current visual acuity measurement mainly has the following three problems.

[0003] First, at present, the vision charts with standard brightness (or high-brightness and high-contrast projection vision meters and light box vision meters) are mainly used for measurement in bright rooms, and the measured vision usually only reflects the vision under standard lighting conditions . However, numerous vision science studies have shown that human vision varies with lighting conditions. Our current visual environment has changed a lot with the change of modern life. For example, we not only need to drive in a bright environment (such as a sunny da...

Claims

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