op‧ti‧cian /ɒpˈtɪʃ
ən $ ɑːp-/ 
 noun [countable]1.   British English someone who tests people’s eyes and sells 
glasses in a shop
 Synonym : optometrist American English2.  American English someone who makes 
lenses for 
glasses  [TahlilGaran] Dictionary of Contemporary English ▲