17.03.2011 The required amount for the operation has been donated, already. Thank you all for helping!
Today was in ophthalmic clinic second time.
They told me again that I have keratoconus on left eye and that I need treatment (collagen crosslinking).
It should be done before thickness of my cornea will be not less than 400 micron.
Treatment will costs 22000 roubles. This is 558 euro.
So anyone have chance to tell me 'thank you' by donate for treatment using this form (or with moneybookers.com account directly to mezich@gmail.com).
Of course I will continue support xnView without any donation. Even with one eye :)

UPD: added donate button linked to Pierre account because currently PayPal accounts in Russia are only able to send payments :(