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Related Experiment Video

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Ultrasound Cyclo Plasty in Eyes with Glaucoma
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Repeatability of selective laser trabeculoplasty for open-angle glaucoma.

Brian A Francis1, Nils Loewen2, Bryan Hong3

  • 1Department of Ophthalmology, David Geffen School of Medicine at UCLA, Doheny Eye Institute, 800 Fairmount Avenue, Suite 215, Pasadena, Los Angeles, CA, 91105, USA. bfrancis@doheny.org.

BMC Ophthalmology
|July 29, 2016
PubMed
Summary

Repeat selective laser trabeculoplasty (SLT) effectively lowers intraocular pressure (IOP) in glaucoma patients. A second SLT procedure provides IOP reduction comparable to the initial treatment, offering a viable option for sustained glaucoma management.

Keywords:
GlaucomaLaserRepeatRepeatabilitySelectiveTrabeculoplasty

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Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Laser Therapy

Background:

  • Selective laser trabeculoplasty (SLT) is a common treatment for open-angle glaucoma.
  • The effectiveness of repeat SLT procedures over time requires further analysis.
  • Understanding the outcomes of repeat SLT is crucial for long-term glaucoma management.

Purpose of the Study:

  • To evaluate the efficacy of repeat selective laser trabeculoplasty (SLT) in lowering intraocular pressure (IOP).
  • To compare the IOP-lowering effect of an initial SLT treatment with a subsequent repeat SLT procedure.
  • To assess changes in medication use following repeat SLT in glaucoma patients.

Main Methods:

  • Retrospective analysis of 137 patients with open-angle glaucoma who underwent two SLT procedures (SLT 1 and SLT 2).
  • Inclusion criteria required a minimum of 6 months between procedures and 6 months of follow-up.
  • Intraocular pressure (IOP) reduction at 6 and 12 months post-treatment was the primary outcome measure.

Main Results:

  • Both initial and repeat SLT treatments significantly reduced IOP (p < .001).
  • The mean IOP decreased from approximately 20.3 mmHg (SLT 1) and 19.4 mmHg (SLT 2) to 16.4 mmHg and 16.7 mmHg at 1 year, respectively.
  • No significant changes in glaucoma medication use were observed between baseline and 1-year follow-up.

Conclusions:

  • Repeat SLT laser treatment in patients with primary or secondary open-angle glaucoma yields IOP lowering comparable to the initial procedure.
  • This suggests that repeat SLT is an effective strategy for managing IOP when the effect of the first treatment diminishes.
  • The findings support the consideration of repeat SLT as a valuable therapeutic option in the glaucoma treatment algorithm.