What is the difference between computer optometry and medical optometry?

The difference between medical optometry and computer optometry is that the former is more complicated and rigorous, and requires higher optometry equipment, and the examination content is beyond the reach of computer optometry. The purpose of computer optometry is to make the ametropia person see the object clearly, and the inspection equipment is relatively simple. The purpose is also to get diopter through computer optometry, try on glasses and successfully match them. ?

First, computer optometry Computer optometry only allows people with ametropia to see more clearly through basic equipment, and the equipment and inspection methods are relatively simple. Just check the optometry, get the diopter through computer optometry, and then try on the lens. The basic principle of computer optometry is basically the same as that of modeling test. Both of them use infrared light source and automatic non-visual device to relax the eyeball, and use photoelectric technology and automatic control technology to check the diopter of the eye. This method is relatively simple. Based on the principle that the light emitted by infrared rays in the illumination area is imaged at a distance, the refraction degree can be judged by observing the fixed-point distance of the pupil in the optical drive.

Medical optometry The content of medical optometry includes scientific measurement of degree, eye position, visual function of raw eyes, discrimination of dominant eyes and so on, so as to match corresponding lenses to achieve the purpose of clear lenses and comfortable and lasting reading. The steps of medical optometry are divided into six steps, including the first most correct ball best vision, red and green test, adjusting the axial position and degree of astigmatism with crossed cylindrical mirror, seeking the best vision test based on accurate astigmatism, and conducting red and green test again to determine the accurate myopia degree. Finally, the binocular balance test is carried out to make the eyes more comfortable and the lenses more in line with the physiological requirements of the eyes. Different optical optometry according to individual differences can better help us to match glasses reasonably.

The difference between medical optometry and computer optometry lies in the different steps, and the results of the former are more accurate. Computer optometry is a common way in ordinary optical shops, which is easy to produce large errors, affect the actual diopter of the eyes, and have a large deviation in eye power. Medical optometry can accurately understand the basic data such as refractive power, astigmatism and axial position of the eye. For teenagers and children who wear glasses for the first time, medical optometry is helpful to correct their eyesight.