| 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 coating having a thickness between about 1 to 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: ##STR5## wherein R1 is an organic group containing at least
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