Standard and long duration repeat argon laser trabeculoplasty

Acta Ophthalmol (Copenh). 1990 Oct;68(5):575-8. doi: 10.1111/j.1755-3768.1990.tb04790.x.


A retrospective survey was performed on 22 patients with chronic simple glaucoma who had undergone a single repetition of argon laser trabeculoplasty. Two groups were identified who had received treatment with either 0.1 or 0.2 sec duration. The 0.2 sec group showed a reduction in the medications used, in addition to a comparable fall in intra-ocular pressure to the 0.1 sec group, and had a lower rate of drainage surgery. These findings may have arisen because of the higher energy delivered as a result of the longer duration employed. However, there are risks of repeating argon laser trabeculoplasty: one patient in the 0.2 sec group developed a rise in intra-ocular pressure of 15 mmHg following the repeat treatment, and required drainage surgery one month later.

MeSH terms

  • Aged
  • Chronic Disease
  • Female
  • Glaucoma, Open-Angle / surgery*
  • Humans
  • Intraocular Pressure
  • Laser Therapy*
  • Male
  • Reoperation
  • Retrospective Studies
  • Time Factors
  • Trabeculectomy*