Some people after wearing glasses appeared dizziness, nausea, easy to visual fatigue, blurred vision, and even therefore suspend school, resignation. Statistics from domestic authorities also show that 60% of the discomfort after wearing glasses is caused by inaccurate optometry. Medical optometry is the prerequisite for a pair of refractive accurate, comfortable and healthy glasses, and it is also the direct reflection of optometry as an important content of optometry. Different from ordinary routine optometry, the purpose of medical optometry is not only to see clearly, but also to harmonize the use of eyeglasses and eyes to achieve health care. It is according to the different conditions of each dispensing glasses, the traditional optometry and eye examination closely combined, pay more attention to the visual function of the eye judgment, according to the comprehensive results of the examination to correctly assess its visual function and refractive state, and then give a reasonable refractive correction prescription and visual function training program, and will have eye diseases in a timely manner to the ophthalmologist. However, the current domestic medical optometry is still far from being widely popularized, firstly, because people still do not really realize that prescription is a strict medical process, rather than ordinary commercial behavior; secondly, for people who need prescription to correct their vision, glasses and eyes are an organic whole concept has not been fully recognized, many people just take glasses as an auxiliary tool to see things.