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Diode laser transscleral cyclophotocoagulation for refractory glaucoma.

A Mistlberger1, J M Liebmann, H Tschiderer

  • 1Department of Ophthalmology, County Hospital Salzburg (Landeskliniken Salzburg, St. Johanns-Spital), Austria. a.mistberger@lks.at

Journal of Glaucoma
|September 18, 2001
PubMed
Summary

Contact diode laser transscleral cyclophotocoagulation effectively lowers intraocular pressure in refractory glaucoma cases. This procedure offers a viable option when traditional surgeries pose unacceptable risks, achieving success in over 70% of treated eyes.

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Area of Science:

  • Ophthalmology
  • Medical Technology
  • Surgical Innovation

Background:

  • Refractory glaucoma presents significant challenges in intraocular pressure (IOP) management.
  • Traditional surgical interventions for glaucoma carry inherent risks, necessitating alternative treatment options.

Purpose of the Study:

  • To assess the efficacy of contact diode laser transscleral cyclophotocoagulation (CDLTCP) in managing refractory glaucoma.
  • To evaluate the impact of varying treatment parameters on the outcomes of CDLTCP.

Main Methods:

  • A retrospective analysis of 206 eyes from 204 patients undergoing CDLTCP between 1991 and 1997.
  • Success defined as IOP ≤ 22 mm Hg or pain absence in visually impaired eyes.
  • Data collected on patient demographics, follow-up duration, IOP, laser applications, and maximal laser power.

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Main Results:

  • Mean preoperative IOP was 42.1 mm Hg, reduced to 17.3 mm Hg at 12 months and 20.3 mm Hg at 24 months (P < 0.001).
  • 72.7% of eyes achieved an IOP ≤ 22 mm Hg at a mean follow-up of 9 months.
  • Neither the number of laser applications nor maximal laser power correlated with lower postoperative IOP. Retreatment was needed in 16.0% of eyes, with phthisis in 1.9%.

Conclusions:

  • Contact diode laser transscleral cyclophotocoagulation is a valuable treatment for refractory glaucoma.
  • It provides an effective alternative for patients unsuitable for conventional outflow surgery.
  • The procedure demonstrates significant IOP reduction with manageable complication rates.