How many degrees is vision 0.2?

According to the visual acuity of 0.2 and can not judge how many degrees.

Because eye vision is affected by refractive state, eye muscle adjustment ability and other factors, vision and eye diopter can not be converted, such as the same is 0.2 vision, after optometry, one patient may be myopia 100 degrees, another patient may be myopia 200 degrees, so can not judge the diopter according to the visual acuity of 0.2 is how many degrees.

If the patient wants to know the actual diopter, you can go to the hospital for mydriasis optometry, can confirm the diagnosis. If diagnosed as myopia, should be timely corrected by wearing glasses or laser surgery.