There is a special kind of prescription eyeglasses, they are photochromic. That means, when you are in a bright environment, the eyeglass lenses will change its color and become dark; and if you are in a house which is not so bright, your prescription eyeglass lenses’ color will become lighter. Shortly speaking, the color of the lenses changes according to the environment. With this pair of eyeglasses you will have less trouble than before.