I am fourteen years old, and I seem to have snow blindness.

Well, I think you should see an ophthalmologist ... In fact, I met your case again. At that time, the doctor said that there was congenital vitreous liquefaction and myopia. It seems that something in my eye is cracked a little. This situation is particularly obvious, but don't worry. If so, make a laser. It's okay ... protect your eyes. ...