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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

Inactive Publication Date: 2006-10-11
深圳市亮睛医疗设备有限公司
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Problems solved by technology

However, the visual acuity between 1.0 and 1.2 cannot be measured.
The measurement method usually used in the process of this level measurement is the classical visual acuity measurement method, which divides the human eye response into two ways, visible and invisible, but the measurement results are obviously not accurate enough
[0005] Third, the current visual acuity measurement needs to be carried out under the guidance of the main tester (for example, a doctor), and cannot be carried out automatically, and the measurement results will be more or less mixed with the main tester's subjective factors

Method used

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  • Human eyesight measuring apparatus and method thereof
  • Human eyesight measuring apparatus and method thereof
  • Human eyesight measuring apparatus and method thereof

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Embodiment Construction

[0029] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0030] First refer to figure 1 , which provides an overall schematic diagram of the human eye vision measuring device according to the present invention. Such as figure 1 As shown, the eyes of the subject to be measured are represented by the symbol 3, and the visual acuity measuring device of the present invention includes an optotype display device 1 for displaying an optotype to the subject, and is used to read the subject's visual acuity. The testee's response reading device 4 for the response of the visual target displayed by the target display device, and the control device 2 for controlling the display of the visual target by the visual target display device and calculating the measurement result according to the testee's response.

[0031] The optotype display device 1 may include, but is not limited to, an LCD or a CRT display, and the display...

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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.

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...

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Application Information

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IPC IPC(8): A61B3/028A61B3/032A61B3/103
Inventor 贺吉昌贺际明
Owner 深圳市亮睛医疗设备有限公司
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