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Related Experiment Videos

Laser therapy and angle-closure glaucoma

J B Fleming1

  • 1Ocular Disease Service, Northeastern State University College of Optometry, Tahlequah, Oklahoma, USA.

Optometry Clinics : the Official Publication of the Prentice Society
|January 1, 1995
PubMed
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Pupillary block angle-closure glaucoma obstructs aqueous flow, raising eye pressure. Laser iridotomy equalizes chamber pressures, opening the drainage angle and is the definitive treatment.

Area of Science:

  • Ophthalmology
  • Glaucoma Research

Background:

  • Pupillary block angle-closure glaucoma involves increased resistance to aqueous flow at the pupil margin.
  • Elevated posterior chamber pressure causes iris bowing, occluding the trabecular meshwork and interrupting aqueous outflow.
  • This condition is often an ocular urgency requiring immediate medical therapy to reduce intraocular pressure.

Purpose of the Study:

  • To review the indications, contraindications, and techniques for laser management of angle-closure glaucomas.
  • To discuss the mechanism of pupillary block and its impact on intraocular pressure.
  • To highlight laser iridotomy as the definitive treatment for pupillary block.

Main Methods:

  • Review of existing literature on pupillary block angle-closure glaucoma.

Related Experiment Videos

  • Analysis of laser therapy techniques for iris hole creation.
  • Discussion of patient selection criteria (indications and contraindications).

    • Main Results:

    • Laser therapy, specifically creating an opening in the iris, effectively equalizes anterior and posterior chamber pressures.
    • This equalization prevents or resolves trabecular meshwork occlusion, maintaining an open drainage angle.
    • Laser iridotomy is presented as the definitive treatment for pupillary block.

    Conclusions:

    • Laser iridotomy is the definitive treatment for pupillary block angle-closure glaucoma.
    • Understanding indications, contraindications, and techniques is crucial for successful laser management.
    • Prompt treatment is necessary due to the urgent nature of elevated intraocular pressure in these cases.