My first prescription sunglasses were bought for fishing; they were big enough to cut out glare from almost all angles (large, coke-bottle-bottom prescription), so they were great for cycling too.
Improved lens material meant the next sunglasses weren't so good at blocking the wind. I'm not a fan of doubling up (goggles over glasses), so I eventually sprung for prescription cycling glasses.
Really, asking the interwebs for glasses recommendations makes about as much sense as asking random people on the street what prescription glasses you need.