anisokonia
|a-ni-so-ko-ni-a|
🇺🇸
/ˌænɪsəˈkoʊniə/
🇬🇧
/ˌænɪsəˈkəʊniə/
unequal image size between the eyes
Etymology
'anisokonia' originates from Greek, specifically the prefix 'aniso-' (from Greek 'anisos') meaning 'unequal' and the element derived from Greek 'eikōn' (εἰκών) meaning 'image', formed in medical/technical New Latin usage.
'anisokonia' is related to the older/alternative medical term 'aniseikonia' (from Greek 'anisos' + 'eikōn'); through modern medical Latin/English usage the form 'anisokonia' (variant transliteration) has been used alongside 'aniseikonia'.
Initially it referred specifically to 'unequal images' (literal Greek sense); in modern ophthalmology the term has retained that core meaning and denotes the clinical phenomenon of unequal perceived image size between the eyes.
Meanings by Part of Speech
Noun 1
a clinical condition in which the perceived image size differs between the two eyes (difference in retinal or perceived image magnification), often causing visual discomfort, diplopia, or difficulty with binocular vision.
The patient experienced headaches and difficulty reading due to anisokonia after intraocular lens implantation.
Synonyms
Last updated: 2025/08/13 10:21