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Related Concept Videos

Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

435
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...
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Open Angle Glaucoma: Treatment01:27

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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...
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Glaucoma: Overview01:25

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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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Updated: Jun 4, 2025

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Minimally invasive glaucoma surgery in angle closure.

Nicole Shu-Wen Chan1,2, Chelvin C A Sng2,3

  • 1Department of Ophthalmology, National University Hospital.

Current Opinion in Ophthalmology
|December 18, 2024
PubMed
Summary
This summary is machine-generated.

Minimally invasive glaucoma surgery (MIGS) combined with cataract surgery effectively lowers intraocular pressure (IOP) in primary angle closure glaucoma (PACG) patients. These procedures offer a safer alternative to traditional surgeries, with trabecular bypass showing particular promise.

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Area of Science:

  • Ophthalmology
  • Glaucoma Surgery
  • Medical Technology

Background:

  • Cataract surgery is the primary treatment for primary angle closure glaucoma (PACG).
  • Elevated intraocular pressure (IOP) can persist post-cataract surgery in PACG due to trabecular meshwork damage.
  • Minimally invasive glaucoma surgery (MIGS) offers potential adjunctive benefits.

Purpose of the Study:

  • To review the efficacy, safety, and role of MIGS in eyes with angle closure glaucoma.
  • To evaluate MIGS as an adjunct to cataract surgery in PACG.
  • To assess the current evidence for various MIGS approaches in PACG.

Main Methods:

  • Systematic review of existing literature on MIGS in angle closure glaucoma.
  • Analysis of studies combining cataract surgery with MIGS.
  • Evaluation of safety and efficacy data for different MIGS procedures.

Main Results:

  • Combining cataract surgery with MIGS in PACG eyes shows greater IOP and medication reduction than cataract surgery alone.
  • Trabecular bypass MIGS and ciliary body treatments are effective and safer than traditional incisional glaucoma surgeries for PACG.
  • Limited evidence currently exists for subconjunctival and suprachoroidal MIGS in angle closure eyes.

Conclusions:

  • Trabecular bypass MIGS and certain ciliary body treatments are effective and safer alternatives for PACG.
  • Further research is needed to establish the role of subconjunctival and suprachoroidal MIGS in angle closure glaucoma.
  • MIGS, particularly trabecular bypass, represents a promising advancement in managing PACG.