Eyesight testing apparatus

Abstract

The present invention relates to an eyesight testing apparatus, including an eyesight chart, an indicator stick, and a printing device. The sight chart includes a positioning device and a circuit board communicatively connected with the positioning device. The positioning device is used for determining the position information corresponding to the visual mark on the indicator bar indicating character screen and transmitting the position information to the circuit board. The indicator stick is communicatively connected with the circuit board, and a confirmation button is arranged on the indicator stick to trigger the indicator stick to send a signal to the circuit board under the action of an external force, so that the circuit board records the position information received at the currenttime when the signal is received, and determines the visual acuity detection result of the subject according to the recorded position information. The printing device is communicatively connected withthe circuit board to print the eyesight detection result of the subject. The vision detection apparatus can print a result by a printer without requiring an operator to write down the result by hand,can reduce the probability of an operator's error, can improve the accuracy of vision detection, and can save an operator's time and energy.

Description

Technical field [0001] The present invention relates to the field of vision detection, and more specifically to vision detection equipment. Background technique [0002] Vision is the ability of the human eye to distinguish whether two points are separated, and the eye chart is a chart used to measure vision. The visual acuity charts used in China are: international standard visual acuity chart, logarithmic visual acuity chart, Lang's ring visual acuity chart, and international standard visual acuity chart is commonly used. The visual index of the visual acuity chart is the core of vision. There are many kinds of it. The commonly used visual acuity chart in my country uses the word "E" as the visual standard, which is the most basic, most commonly used and most important inspection tool in ophthalmology. At present, the traditional detection method is mainly used, that is, an international standard eye chart is used, and the medical staff instructs the subjects to identify the v...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a vision detection device that can improve the accuracy of recording and save time and energy for the existing vision detection that is prone to errors and consumes time and energy.

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