A very sensible and wise question! An eyepatch is an excellent accessory. You'll find that you see more with your face more relaxed without squinting. Search and you'll find some threads about eyepatch use for observing on IIS (and some about "Talk like a Pirate" day
)
E.g.
http://www.iceinspace.com.au/forum/s...ad.php?t=40280
Check your pharmacies - they should have eyepatches. There are soft ones and hard ones. The hard ones are really to go over dressings I think, I find they hurt my face. I use a soft one which I'm fairly sure I bought from Scopestuff:
http://www.scopestuff.com/ss_eypb.htm