Grid laser treatment for exudative retinal detachment secondary to ischemic branch retinal vein occlusion

Maurizio Battaglia Parodi, Giuseppe Di Stefano, Giuseppe Ravalico

Research output: Contribution to journalArticlepeer-review


PURPOSE: To evaluate the effectiveness of macular grid laser photocoagulation (MGLP) in obtaining the reabsorption of exudative retinal detachment (ERD) in patients with ischemic branch retinal vein occlusion (BRVO). METHODS: Prospective, randomized clinical trial including 31 patients with ERD secondary to ischemic BRVO, who were randomized either to MGLP or to observation. A complete ophthalmologic examination was performed within 7 days of treatment, and was arranged to be repeated regularly every 6 months for 24 months. MGLP was performed using a krypton laser with a spot size of 100 μm at 0.1 second. The main outcome measure was the number of eyes that had gained at least 15 letters at the 24-month examination in the two groups. RESULTS: By the month 24 visit, 40% of the patients in the MGLP group had gained at least three lines of visual acuity as opposed to no patient in the control group. The mean best-corrected visual acuity passed from 20/160 to 20/125 Snellen equivalent in the MGLP group, and from 20/160 to 20/400 Snellen equivalent in the control group at month 24. The difference in the mean reabsorption time was statistically significant (P <0.001) comparing the treated group with the controls (9.1 versus 15.8 months). CONCLUSION: Natural history of ERD secondary to ischemic BRVO is poor, and MGLP is able to prevent visual acuity deterioration through a 24-month follow-up.

Original languageEnglish
Pages (from-to)97-102
Number of pages6
Issue number1
Publication statusPublished - Jan 2008


  • Branch retinal vein occlusion
  • Exudative retinal detachment
  • Macular grid laser treatment

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems


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