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Related Concept Videos

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...
Angle Closure Glaucoma: Treatment01:28

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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...

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Related Experiment Video

Updated: May 7, 2026

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects
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Published on: August 14, 2013

Selective laser trabeculoplasty: Does energy dosage predict response?

Larissa Habib1, James Lin, Tamara Berezina

  • 1Institute of Ophthalmology and Visual Science, Rutgers New Jersey Medical School, Newark, NJ USA.

Oman Journal of Ophthalmology
|October 2, 2013
PubMed
Summary
This summary is machine-generated.

Higher energy in selective laser trabeculoplasty (SLT) correlates with greater intraocular pressure (IOP) reduction in open-angle glaucoma patients over three years. This finding helps optimize SLT energy dosage for maximum IOP lowering effects.

Keywords:
Glaucomalaser therapyselective laser trabeculoplasty

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Area of Science:

  • Ophthalmology
  • Glaucoma treatment
  • Laser therapy

Background:

  • Selective laser trabeculoplasty (SLT) is a standard treatment for open-angle glaucoma.
  • SLT effectively lowers intraocular pressure (IOP).
  • The relationship between SLT energy dosage and long-term IOP reduction requires further investigation.

Purpose of the Study:

  • To evaluate the long-term correlation between SLT energy dosage and IOP reduction.
  • To determine if higher energy levels yield greater IOP reduction over time.

Main Methods:

  • Retrospective review of patients undergoing primary 360° SLT.
  • Collected SLT energy settings and IOP measurements up to 36 months post-treatment.
  • Utilized Pearson's correlation and Kaplan-Meier analysis to assess energy-IOP relationship and time to treatment failure.

Main Results:

  • A significant positive correlation was observed between SLT energy delivered and IOP reduction at all time points.
  • Patients receiving lower energy SLT (<85 mJ) experienced earlier treatment failure (≥20% IOP reduction).
  • A significant difference in IOP reduction was found among low, medium, and high energy groups.

Conclusions:

  • Increased SLT energy dosage is associated with greater IOP reduction up to three years.
  • Findings suggest a dose-dependent effect of SLT energy on IOP control.
  • Optimal energy dosage can be determined to maximize SLT treatment efficacy.