open-angle glaucoma


open-an·​gle glaucoma ˌō-pən-ˈaŋ-gəl- How to pronounce open-angle glaucoma (audio)
: a progressive form of glaucoma in which the channel formed between the iris and the cornea remains open and tissue changes along the channel gradually reduce drainage of the aqueous humor through the trabecular meshwork of the eye's anterior chamber

Note: Open-angle glaucoma is characterized by a gradual loss of vision. A serious reduction in vision occurs only in the advanced stages of the disease.

The most common cause of an optic neuropathy in the general population is open-angle glaucoma; it is often asymptomatic and results in slowly progressive peripheral visual-field constriction over a period of years.Dean M. Cestari et al., The New England Journal of Medicine
compare angle-closure glaucoma

Dictionary Entries Near open-angle glaucoma

Cite this Entry

“Open-angle glaucoma.” Medical Dictionary, Merriam-Webster, Accessed 23 Mar. 2023.

Love words? Need even more definitions?

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

What Did You Just Call Me?

  • brown chihuahua sitting on the floor with squinting eyes looking at the camera
  • Before we went to her house, Hannah told us her aunt was a flibbertigibbet.
Spell It

Hear a word and type it out. How many can you get right?

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?