Visual acuity table 0.3 is equivalent to 200-250 degrees of myopia, some people have stronger compensatory ability, may have about 300 degrees of myopia, some people have poorer compensatory ability, 150 degrees of myopia is also about 0.3 visual acuity. If this vision is among children, they have to wear glasses to correct it, otherwise they will not be able to see the blackboard and affect their study. If you don’t wear glasses, your myopia will increase very fast. If it is among adults, you can choose to wear frames, or contact lenses, or choose to solve the problem through surgery. However, some people who see close to work on a daily basis, such as frequent use of cell phones or computers, and have less need for distance, can also go without glasses if they feel their vision is adequate.