Hello,
Normally I don't have a lot to say on this forum but this issue is something I have gone through for the last three or four years.
Here is what worked for me...
I took a digital clock (with red numbers - due to red being a longer wave length) to the eye doctor and had him put it about six feet in front of the eye machine thing...
and had him give me a prescription for that distance. Works great for pool. Not really for any thing else but that's not the point.
I tried several types of lenses. The high index lenses work best. They already have non-glare on them and scratch resistance too.
Zeiss lenses in my experience are the best high index lenses. They cost quite a bit more but are worth it to me. They are thinner and lighter too.
Lightweight glasses are important. As lightweight as you can get them anyway.
As far as frames go... well that's up to you. What ever makes you look good

Though you need them to be "tall" enough so you
can see without the top of the rim interfering with seeing the balls when you are down on a shot.
Also, if possible, find an eye doctor that plays pool too... it helps alot as he has a much better understanding of what you need.
I hope this helps. I found out the hard way, though experience... LOL
ZenCues.com