I wore contact lenses for years. After cataract surgery (on both eyes) it was discovered that I had glaucoma in my right (shooting eye). I went to Red Dot sights for most of my handguns and actually am "back in the game" (using my left eye). However, I recently (a couple of months ago) took delivery on the new Ruger .44 Lipsey Special. Esthetically, I CANNOT hang a Red Dot sight on this fine revolver. My dealer and good friend suggested I buy a pair of flip up glasses that you wear just like a pair of flip up sunglasses. These are clear and 1½ Power which is just right for two handed shooting. I get a really good sight picture with the Bullseye somewhat blurred. Here is a recent target shot with this combination (the .44 Lipsey Special with iron sights, the flip up glasses, standing at 25 yards):
I am really getting a kick out of this new revolver (been waiting fifty years for Ruger to make it)...
Oh, the flip up glasses are available from Champion's Choice in LaVern, Tenn (CC clip on large 1.5 power $20.00). If you shoot one handed NRA style it is recommended that you get the CC Clip on 1.0 power glasses.
Dale53