filtration surgery

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Related to filtration surgery: Trabeculectomy
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Noun1.filtration surgery - eye surgery that opens a passage allowing excess aqueous humor to drain into surrounding tissues; a treatment for glaucoma
eye operation, eye surgery - any surgical procedure involving the eyes
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References in periodicals archive ?
Filtration surgery is currently one of the most effective methods to treat glaucoma; the objective of this surgery is the creation of a fistula at the limbus, which allows the aqueous humour to drain from the anterior chamber into the subconjunctival space, thereby circumventing any pathological obstruction to outflow.
All enrolled PG eyes had functional blebs in the first 6 months after the filtration surgery. At the end point of the study, 16 patients still had functional blebs with satisfactory IOP control, with one receiving PGA eye drop daily at night.
Laser iridotomy has been shown to be an effective primary therapy for early PACG, although advanced cases require further treatment with topical medication or filtration surgery. Unaffected fellow eyes of patients who have had angle closure have a 50% risk of developing an episode of angle closure if not treated with prophylactic iridotomy.
The trial will assess the safety and long-term tolerability of the product in patients with advanced glaucoma undergoing filtration surgery due to uncontrollable elevated intraocular pressure.
The risk profile of glaucoma filtration surgery. Curr Opin Ophthalmol 1999; 10: 112-116.
The procedure, also called glaucoma filtration surgery, is done to reduce pressure that builds up inside the eye.
d) Consideration of trabeculectomy filtration surgery to reduce the IOP
Cataract formation and progression of pre-existing cataract can take place after filtration procedures, being the main cause of early visual loss after filtration surgery.
The technique of the filtration surgery has also undergone changes to enhance the success rate such as anti-fibrosing agents, releasable and adjustable sutures, laser suture lysis and non-penetrating procedures.
But if eye drops are unsuccessful, either laser surgery or glaucoma filtration surgery (or both) may be necessary.