I require specs for distance vision.
Two solutions:-
1. I wear a pair of prescription specs with photochromatic lenses. This is ideal for me in weather other than rain.
If you do any night riding and it rains (memories on DunRun 2007), if you require specs you can end up cycling blind when the water does not clear properly from the lenses combined with the kaleidoscopic effect of refraction of light from raindrops with light from your own lights and/or oncoming traffic. That is NOT FUN. Indeed it's bloody dangerous. I had to bail out of the DunRun 2007 during torrential rain as I simply could not see where I was going and did not want to end up in a ditch in the middle of nowhere in the middle of the night.
Hence:-
2. Contact lenses. Combined with non-prescription sunglasses during the day and non-prescription clear lenses for night/fog/dull days. Then if it's raining, you still have good vision when looking over the top of the lenses.
Now, unless I know in advance that the weather is going to be ok I tend to be using contact lenses when cycling. I learnt the hard way during the DunRun.
For me, my ideal solution to the eyesight thing is contact lenses + non-prescription sunglasses/clear lenses and I take with me a replacement set of lenses (I use daily disposables), 'comfort' eye drops in case of irritation, and I take an old pair of my prescription specs along as a back-up in case my eyes get tired from the contacts being in for a long period. I'm pretty much covered for all conditions I meet cycling that way.