Holosight should work OK. I like Trijicon's Reflex sight.
I have a lot of floaters in my eyes and bifocals. Red dots work nice, but the Reflex sight is really tough and never needs batteries and no on/off switches to forget.
I had a Holosight for a while, the onlything I didn't like was any bit of moisture on the sreen would look like another red dot.