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Trabeculectomy

Eye Care estimated about CNY 6000-12000

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Description

A surgical procedure that creates a new drainage pathway for aqueous humor to lower intraocular pressure in glaucoma patients, typically involving partial removal of the trabecular meshwork and scleral flap creation.

Main Uses

Primary clinical use is surgical management of refractory open-angle glaucoma, angle-closure glaucoma unresponsive to laser iridotomy, and select cases of secondary glaucomas (e.g., uveitic, neovascular) when medical and laser therapies fail. It aims to create a controlled aqueous outflow pathway to lower intraocular pressure and prevent optic nerve damage.

Normal Range

Trabeculectomy is a surgical procedure, not a laboratory or diagnostic test with numerical values; therefore, there is no 'normal range' of quantitative measurements. Postoperative success is assessed clinically via intraocular pressure (IOP) targets (typically 6–18 mmHg), absence of progressive optic nerve damage, stable visual fields, and functional bleb morphology — not standardized lab values.

Low Values - Possible Causes

N/A — Trabeculectomy is not a measurable test yielding low/high numerical results. However, postoperative IOP <5 mmHg (hypotony) may result from overfiltration, wound leak, choroidal effusion, or excessive antifibrotic use (e.g., mitomycin C).

High Values - Possible Causes

N/A — Trabeculectomy itself has no 'high values', but elevated postoperative IOP (>21 mmHg) may indicate surgical failure due to scarring (fibrosis), bleb encapsulation, inadequate filtration, retained lens material, or pre-existing aggressive glaucoma progression.

trabeculectomy glaucoma surgery filtering surgery

estimated about CNY 6000-12000