Canadian Medical Guide > Analytical, Diagnostic and Therapeutic Techniques and Equipment > Surgical Procedures, Operative > Ophthalmologic Surgical Procedures > Filtering Surgery Terms and Definitions

Filtering Surgery

Medical Definition:	A surgical procedure used in treatment of glaucoma in which an opening is created through which aqueous fluid may pass from the anterior chamber into a sac created beneath the conjunctiva, thus lowering the pressure within the eye. (Hoffman, Pocket Glossary of Ophthalmologic Terminology, 1989)
Guide Notes:	in glaucoma surg; do not use /util except by MeSH definition; DF: FILTERING SURG
Previously Indexed:	Glaucoma/surgery (1966-1994)

Filtering Surgery Categories.

	Sclerostomy - Surgical formation of an external opening in the sclera, primarily in the treatment of glaucoma.
	Trabeculectomy - Any surgical procedure for treatment of glaucoma by means of puncture or reshaping of the trabecular meshwork. It includes goniotomy, trabeculotomy, and laser perforation.

Filtering Surgery Medical Definitions and Terms

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