The fit over sun glasses are mostly for people with eye problems and they are separate from the glasses. They cover the glasses above, below, and on the sides. Clip on flip up shooting glasses can be bought in different sizes to match the shape of your lenses. Get bigger and wear side shields. I wore them back when I wore prescription glasses. They aren't as good as prescription colored glasses but are hundreds cheaper for three pair and work fine. Bolle makes shooting colored glasses that the prescription lenses will fit inside or just use as colored shooting glasses and come with five different colors. My optician at work sells them. I have a set of the interchangeable Bolle shooting glasses and they came with yellow, vermillion, amber, dark, and clear. My purple are Beretta glasses.