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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 20, 2026

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents

Published on: February 15, 2022

Subspecialization in glaucoma surgery.

Robert J Campbell1, Chaim M Bell, Sudeep S Gill

  • 1Department of Ophthalmology, Queen's University, Kingston, Canada. rob.campbell@queensu.ca

Ophthalmology
|July 31, 2012
PubMed
Summary
This summary is machine-generated.

The proportion of ophthalmologists performing incisional glaucoma surgery declined by 47% from 1995 to 2010. Concurrently, high-volume glaucoma surgeons performed a greater share of these procedures, indicating a trend toward subspecialization.

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Ultrasound Cyclo Plasty in Eyes with Glaucoma
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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Published on: February 15, 2022

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
  • Surgical trends
  • Public health

Background:

  • Glaucoma surgery is a critical intervention for vision preservation.
  • Understanding practice patterns is essential for healthcare planning and education.

Purpose of the Study:

  • To evaluate trends in glaucoma surgery subspecialization in Ontario, Canada.
  • To analyze changes in incisional glaucoma surgery and laser trabeculoplasty practice patterns.

Main Methods:

  • Population-based analysis of ophthalmologists in Ontario from 1995-2010.
  • Utilized anonymized physician services data from the Ontario Health Insurance Plan (OHIP).
  • Examined the proportion of ophthalmologists performing specific procedures and the distribution of procedures among surgeons.

Main Results:

  • The percentage of ophthalmologists performing incisional glaucoma surgery decreased by 47% (35% to 19%).
  • The mean number of incisional glaucoma surgeries per surgeon doubled.
  • The proportion of incisional glaucoma operations by high-volume surgeons increased from 23% to 59%.
  • Laser trabeculoplasty practice remained stable (48% to 50%).

Conclusions:

  • A significant decline in ophthalmologists performing incisional glaucoma surgery was observed.
  • High-volume glaucoma surgeons increasingly performed incisional glaucoma surgeries.
  • These trends have implications for healthcare policy, hospital planning, and residency training programs.