| http://www.w3.org/ns/prov#value | - A photochromic synthetic resin ophthalmic lens, comprising a synthetic resin lens body coated with a photochromic surface hard coat having a thickness between about 1 and 30??, the surface hard coat formed from at least one organic silane compound which has been hydrolyzed, the silane compound having the general formula (1) as follows: ##STR8## wherein R1 is an organic group containing at least on
|
