Vinpocetine is one I can recently attest to for eyesight (thanks for that post the other week earthclinic).
I've only been taking one small tablet most days for the last week because my right eye weakens now and then. I usually step its performance back up using NAC and fish broth, but I heard such good things last time about Vinpocetine I thought I'd try it myself.
T'is fantastic. My mind is sharper, not that I was fogged-up before, but I don't drink coffee/caffeine; I'm feeling the sharpness of mind.
My eye wasn't *that* bad, but I always recognised things got blurrier when I hit the sugar or alcohol (just in that eye) which isn't often. I'm in my late 40's and read a LOT in dim light. (My eyes aren't ruined yet Mother! ) I don't wear glasses either because there is no need.
One single week and though not 100% (or 20/20 like the other eye) I'd say it's at least back up to 93%, having dropped to maybe 85% clarity. I could see through it well enough for fine print and in darkness etc., but there was a vague opaqueness around the periphery- that has absolutely gone.
The thing is- it has unmistakably improved the quality of vision.
(I also routinely take iodine and have plenty of fish/bone broth usually. Paleo/Mediterranean diet.)