I wore hard contacts for 38 years, have astigmatism front and back of my eyes, corneal scarring, and just in December went to soft contacts. The best eyesight I had with hard lenses was 20/40. With the monthly soft ones now, I can see 20/25. This may not sound like much improvement, but to me, it is a big improvement. I can see now where they were gray areas before for aiming.
I have shot 3 times with glasses, and they were, by far, the worst for trying to play. Messed my game all up. The new soft lenses are the most comfortable, and I notice only a slight dryness, usually around 12:30 or 1:00 in the morning when out playing for the evening. I carry a small bottle of solution with me to oil my eyes when I need it. Regular solution geared for soft contacts is much better than Visine or something like that.
When you get used to contacts, depth perception is better, I think, than glasses. Contacts slightly reflect light more, which makes you susceptable to glare in the daytime, but at night, when playing Pool, I think it actually assists you in seeing the angles better.
All I know is that I haven't been able to see this well since I was 5 years old. I have one Acuvue with astigmatism lense, and one Bausch and Lomb lense (because of the curvatures of my eyes). I wear a pair a month, and then discard, and wear the next pair a month, for 6 months, then purchase a new 6 pack.