Identify the instrument:
The given instrument is a gonioscope.
- Gonioscopy is using a goniolens (also known as a gonioscope) together with a slit lamp or operating microscope to view the iridocorneal angle, or the anatomical angle formed between the eye’s cornea and iris.
- Its use is important in diagnosing and monitoring various eye conditions associated with glaucoma.
- It is also used to visualise the angle of the anterior chamber (gonioscopy).
- Indirect gonioprism: provides a mirror image of the opposite angle
- Direct goniolens: provides a direct view of the angle
- To view the angle of the anterior chamber
- Localization of foreign body, abnormal blood vessels, or tumors in the angle
- Demonstration of the extent of peripheral anterior synechiae
- Direct goniolens used during goniotomy.