Every time we go to the optical shop for optometry, we see a series of "Martian characters", a confused water, ask the optometrist's own eyes, and they are all just words, not to say more, as if I was afraid that I know that the degree is not in his glasses. Like, it is very uncomfortable! And as the owner of our own eyes, it is necessary and obligatory to understand our eye health, so my friends of myopia, I have summarized the prescriptions commonly used in optometry, you must be patient The following content is finished!