wow, me too! well, i was 5. I got them in kindergarden. My eyes are really bad... my dad has glasses at 2400/20..... his glasses are over a centimeter thick >_< all his siblings and his parents have glasses..... and all the grandkids. lol, must be a dominating gene in us lol
Apparently refractive index is the term I mean ^^; I can't find any conversion table though. Unless I know that, I really don't have a clue how blind he really is. I know I'm pretty bad. I'm not the worst my optometrist has seen, but that doesn't mean alot ^^;