Dictionary.com
Thesaurus.com

orthoptic

American  
[awr-thop-tik] / ɔrˈθɒp tɪk /

adjective

Ophthalmology.

  1. pertaining to or producing normal binocular vision.

orthoptic British  
/ ɔːˈθɒptɪk /

adjective

  1. relating to normal binocular vision

    orthoptic exercises
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of orthoptic

First recorded in 1880–85; orth- + optic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.