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Related Concept Videos

Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

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Related Experiment Video

Updated: Jun 18, 2026

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery
04:15

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery

Published on: June 27, 2025

Visual recovery after trabeculectomy.

S K Seah1, J A Prata, D S Minckler

  • 1Doheny Eye Institute and the Department of Ophthalmology, University of Southern California School of Medicine, Los Angeles, California, U.S.A.

Journal of Glaucoma
|November 19, 2009
PubMed
Summary
This summary is machine-generated.

Trabeculectomy recovery of visual acuity is usually quick, but advanced glaucoma and hypotony can cause delays. Understanding these factors aids in managing patient expectations and outcomes after surgery.

Related Experiment Videos

Last Updated: Jun 18, 2026

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery
04:15

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery

Published on: June 27, 2025

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Surgical Outcomes

Background:

  • Trabeculectomy is a common surgical procedure for glaucoma.
  • Visual acuity recovery after trabeculectomy can vary.
  • Factors influencing recovery time and visual loss require further investigation.

Purpose of the Study:

  • To determine the postoperative visual acuity recovery time following trabeculectomy.
  • To identify factors associated with delayed visual recovery and visual loss after trabeculectomy.

Main Methods:

  • Retrospective analysis of 155 patients undergoing trabeculectomy.
  • Examination of factors including age, race, preoperative visual fields, optic nerve status, antimetabolite use, and postoperative complications.
  • Assessment of Humphrey Field Analyzer indices and postoperative hypotony.

Main Results:

  • 93% of patients regained preoperative visual acuity; 7% sustained visual loss.
  • Delayed recovery (>2 months) occurred in 11% of patients, associated with advanced visual field defects and postoperative hypotony.
  • Visual loss was linked to a higher incidence of postoperative complications.

Conclusions:

  • Primary open-angle glaucoma patients with advanced visual field defects face higher risk of delayed visual recovery post-trabeculectomy.
  • Postoperative hypotony is a contributing factor to delayed visual recovery.
  • Identifying at-risk patients can improve surgical management and patient counseling.