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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.
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Pneumatic Trabeculectomy: A Modification in Conventional Trabeculectomy.

Shikha Gupta1, Monika Arora1, Karthikeyan Mahalingam2

  • 1Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

Current Eye Research
|June 4, 2025
PubMed
Summary
This summary is machine-generated.

Pneumatic trabeculectomy (PTB) significantly reduces anterior chamber collapse during high-risk glaucoma surgery. This novel technique offers a safer alternative to conventional trabeculectomy by maintaining stable intraocular pressure.

Keywords:
Pneumatic trabeculectomyanterior chamber maintainerconstant-pressure air infusionsafe trabeculectomy

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Area of Science:

  • Ophthalmology
  • Surgical Innovation
  • Glaucoma Surgery

Background:

  • Trabeculectomy is a common glaucoma surgery.
  • High-risk cases often experience complications like anterior chamber collapse.
  • Maintaining anterior chamber stability is crucial during surgery.

Purpose of the Study:

  • To introduce and evaluate a novel technique, pneumatic trabeculectomy (PTB).
  • To compare the efficacy and safety of PTB versus conventional trabeculectomy.
  • To assess anterior chamber stability and intraoperative complications in high-risk patients.

Main Methods:

  • A prospective, interventional, nonrandomized comparative pilot study.
  • High-risk patients were divided into conventional trabeculectomy (Group A) and PTB (Group B).
  • Primary outcomes included anterior chamber fluctuations, need for reformation, and complications.

Main Results:

  • PTB group showed significantly less anterior chamber collapse (4.17% vs 83.3%, p < 0.001).
  • Anterior chamber remained stable in the PTB group, unlike the conventional group requiring frequent reformation (p < 0.001).
  • Surgical times were comparable between groups (p = 0.83).

Conclusions:

  • Pneumatic trabeculectomy is a safer alternative for high-risk glaucoma surgery.
  • PTB effectively prevents anterior chamber collapse and reduces the need for reformation.
  • This technique enhances surgical safety in complex trabeculectomy cases.