The invention includes a method for the passivation of the surface of an intraocular lens, wherein the surface includes Bronsted sites. The intraocular lens is dipped into a solution of a fluoroalkyl silane having the general formula: R.sub.f--(CH.sub.2).sub.n--Si--(O--R).sub.3. The residue R is selected from the group of H, CH.sub.3, C.sub.2H.sub.5 and C.sub.3H.sub.7 and the fluoroalkyl residue R.sub.f is selected from the series CF.sub.3(CF.sub.2).sub.m, with m=3 to 11 and n=0 to 4. The Bronsted sites on the surface are thereby deactivated by formation of Si--Q--bonds.