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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 19, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

[Non-penetrating glaucoma surgery].

T Klink1, J Matlach, F Grehn

  • 1Augenklinik und Poliklinik, Universitätsklinikum Würzburg, Josef-Schneider-Strasse 11, Würzburg, Germany. T.Klink@augenklinik.uni-wuerzburg.de

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|August 23, 2012
PubMed
Summary
This summary is machine-generated.

Non-penetrating glaucoma surgery (NPGS) benefits high-risk patients. Deep sclerectomy (DS) and canaloplasty offer effective intraocular pressure (IOP) control, with canaloplasty showing sustained success, especially when combined with phacoemulsification.

Related Experiment Videos

Last Updated: May 19, 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 Surgery
  • Surgical Innovation

Context:

  • Non-penetrating glaucoma surgery (NPGS) is indicated for patients at high risk of glaucoma complications.
  • Specific conditions like neovascular or traumatic glaucoma and narrow angles contraindicate NPGS.
  • Deep sclerectomy (DS), viscocanalostomy, and canaloplasty are evolving surgical techniques for glaucoma management.

Purpose:

  • To evaluate the efficacy and outcomes of various non-penetrating glaucoma surgical techniques.
  • To compare the intraocular pressure (IOP) lowering effects and success rates of DS, canaloplasty, and their modifications.
  • To assess the benefits of combining canaloplasty with phacoemulsification.

Summary:

  • Deep sclerectomy (DS), when modified with mitomycin C and intrascleral implants, achieves IOP control and success rates comparable to trabeculectomy.
  • Viscocanalostomy aims for blebless IOP control with a low complication profile but limited IOP reduction.
  • Canaloplasty demonstrates more favorable results than viscocanalostomy, and when combined with phacoemulsification, offers sustained IOP control comparable to phacotrabeculectomy.

Impact:

  • These findings support the use of advanced non-penetrating glaucoma surgical techniques for effective IOP management.
  • Canaloplasty, particularly in combination procedures, presents a viable alternative for sustained glaucoma treatment.
  • The study contributes to understanding the comparative effectiveness of different glaucoma surgical approaches, guiding clinical decision-making.