How do you know how much you are shortsighted?

If you want to know your myopia degree, you need to go to an eye clinic or a regular optician for computer optometry. If you show myopia, you need to go through computer optometry to judge it. Adult patients can just go through simple computer optometry. If you are a minor, generally speaking, you need to go through pupil dilation optometry. After computer optometry, you can clearly judge the degree of myopia.