Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
orthoptic is an adjective meaning "of or relating to normal binocular vision". It carries one recorded sense.
of or relating to normal binocular vision
Definitions, synonyms and semantic relations for orthoptic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.