Search Result for "orthoptics": 
Wordnet 3.0

NOUN (1)

1. treatment of defects of binocular vision (such as strabismus and amblyopia) by nonsurgical measures (especially by exercises to strengthen the eye muscles); 



WordNet (r) 3.0 (2006):

orthoptics
    n 1: treatment of defects of binocular vision (such as
         strabismus and amblyopia) by nonsurgical measures
         (especially by exercises to strengthen the eye muscles)