ophthalmology

noun

oph·​thal·​mol·​o·​gy ˌäf-thə(l)-ˈmä-lə-jē How to pronounce ophthalmology (audio)
ˌäp-
-ˌthal-
: a branch of medical science dealing with the structure, functions, and diseases of the eye
ophthalmologic
ˌäf-thə(l)-mə-ˈlä-jik How to pronounce ophthalmology (audio)
ˌäp-
-ˌthal-
adjective
or ophthalmological
ophthalmologically adverb

Examples of ophthalmology in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Santen operates in ophthalmology and has meaningful global market share in eye-care products. Robert Daugherty, Forbes.com, 30 May 2026 Parker said the injured man was in stable condition and talking while waiting for ophthalmology care. Lillie Davidson, Fort Worth Star-Telegram, 28 Apr. 2026 Still, the latter has the potential to have the most impact on the broader ophthalmology field and beyond, said Zhu. Annalisa Merelli, STAT, 8 Apr. 2026 Some specialties, like ophthalmology, send out their announcements a little early. Kara Finnstrom, CBS News, 23 Mar. 2026 See All Example Sentences for ophthalmology

Word History

Etymology

borrowed from German Ophthalmologie, from ophthalmo- ophthalmo- + -logie -logy

First Known Use

circa 1842, in the meaning defined above

Time Traveler
The first known use of ophthalmology was circa 1842

Browse Nearby Words

Cite this Entry

“Ophthalmology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ophthalmology. Accessed 4 Jun. 2026.

Kids Definition

ophthalmology

noun
oph·​thal·​mol·​o·​gy ˌäf-thə(l)-ˈmäl-ə-jē How to pronounce ophthalmology (audio)
ˌäp-
-ˌthal-
: a branch of medical science dealing with the structure, functions, and diseases of the eye

Medical Definition

ophthalmology

noun
oph·​thal·​mol·​o·​gy -ˈmäl-ə-jē How to pronounce ophthalmology (audio)
plural ophthalmologies
: a branch of medical science dealing with the structure, functions, and diseases of the eye
ophthalmologic adjective
or ophthalmological
ophthalmologically adverb

More from Merriam-Webster on ophthalmology

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster