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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...
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...
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...

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Related Experiment Video

Updated: May 10, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

Clear lens extraction in angle-closure glaucoma patients.

Diego T Q Barbosa1, Ashleigh L Levison, Shan C Lin

  • 1Department of Ophthalmology, University of California, San Francisco, California, USA.

International Journal of Ophthalmology
|July 5, 2013
PubMed
Summary

Clear lens extraction may help manage elevated intraocular pressure (IOP) in angle-closure glaucoma patients. This study found that three of five patients achieved good IOP control after the procedure, with some still requiring medication.

Keywords:
angle closurecataractclear lensglaucoma

Related Experiment Videos

Last Updated: May 10, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Surgical Interventions

Background:

  • Angle-closure glaucoma is characterized by elevated intraocular pressure (IOP).
  • Patients often require multiple topical medications and prior laser iridotomy for IOP management.
  • Uncontrolled IOP in these patients poses a significant risk to vision.

Purpose of the Study:

  • To evaluate the efficacy of clear lens extraction in managing elevated IOP.
  • To describe outcomes in five consecutive angle-closure glaucoma patients undergoing this procedure.

Main Methods:

  • Retrospective observational case series.
  • Clear lens extraction using phacoemulsification with intraocular lens implantation.
  • Patients had prior laser iridotomy and were on multiple topical medications.

Main Results:

  • Three out of five patients achieved good IOP control (<22mmHg) post-surgery without medication.
  • One patient showed improved IOP control but still required topical medications.
  • One patient did not achieve target IOP despite maximal medical therapy.

Conclusions:

  • Therapeutic clear lens extraction shows potential in select angle-closure glaucoma cases.
  • This surgical approach may offer a viable treatment option for IOP management.
  • Further research is warranted to confirm the role of clear lens extraction in glaucoma management.