I wear glasses and I have the no-peep installed. I can see better without a peep, but my glasses still interfer with my vision. I have found that different frame styles will alter your view. Some glasses sit closer to your eyes and some are at odd angles which can distort vision through the edge of the lense. I have found that I can see much better with certain style glasses and that I have to be very careful when choosing new ones. I got new glasses last year and it was very expensive for me, because I had to get 3 difference pairs to find one that worked adequately. Unfortunately, there is no way to try them out before hand to test the clarity at an angle, and have the correct lens in them at the same time.