What is "gonioscopy"

n. the use of a gonioscope in conjunction with a slit lamp or operating microscope to gain a view of the anatomical angle formed between the eye's cornea and iris, known as the iridocorneal angle

Gonioscopy describes the use of a goniolens (also known as a gonioscope) in conjunction with a slit lamp or operating microscope to gain a view of the iridocorneal angle, or the anatomical angle formed between the eye's cornea and iris. The importance of this process is in diagnosing and monitoring various eye conditions associated with glaucoma.