I have a warped retina in my non dominant eye which makes me unable to focus it and everything I see in that eye is warped. It causes me to have trouble seeing how far down I have to step on stairways or off curbs etc. I find it does not impact my photo vision at all but I do my composing through the camera. Looking through my camera I feel like a normal person. When playing my guitar I sometimes have trouble seeing which string I am on.