| abstract |
An ophthalmic lens consisting of a substrate made of organic glass, of an abrasion-resistant coating, of a layer of impact-resistant primer and of an inorganic antireflective coating, wherein the surface of the said substrate is covered with the abrasion-resistant coating and in that the impact-resistant primer layer is inserted between the said abrasion-resistant layer and the anti-reflective coating, wherein the abrasion-resistant coating comprises a hydrolyzate or a mixture of hydrolyzates of a silane compound of formula: ##STR1## in which: R 1 denotes an organic group containing an epoxy group; n R 2 is a hydrocarbon radical which has 1 or 2 carbon atoms; and n R 3 is a hydrocarbon group which has from 1 to 4 carbon atoms, and a is 0 or 1 in value. |