@laser:
Trust me, if you get 20% H2O2 in your eyes chances are you can wave goodbye to vision from that eye! I am a chemical engineer, I know what I talk about... but if you think it's safe be my guest, just consider yourself warned
FYI: H2O2 will oxidize the proteins in your eye, this is a non-reversible process!
An example of messing with proteins in a non-reversible way: fry an egg, and try to turn into a liquid egg again, can't be done.