| abstract |
A polymerizable composition for forming an optical device, which comprises a polymerizable monomer of the following formula (1) and a polymerizable monomer of the following formula (2). Using the composition makes it possible to produce an optical device which has a high light transmittability and keeps a reduced transmission loss even in wet. n n n n n n n n n n n n wherein R 1 and R 2 each are H or D; R 3 is H, D, CH 3 , CD 3 or a halogen atom; R 4 is an alkyl group having from 2 to 8 carbon atoms and at least partly substituted with a fluorine atom, n n n n n n n n n n n n n n n n wherein R 1 and R 2 each are H or D; R 3 is H, D, CH 3 , CD 3 or a halogen atom; X 1 to X 5 each are H, D, a halogen atom or CF 3 , and at least one of X 1 to X 5 is a halogen atom or CF 3 . |