Posters

The effect of the pattern scan and conventional single spot pan retinal photocoagulation in patients with proliferative diabetic retinopathy: a randomized clinical trial

Poster Details

First Author: K. Golabchi IRAN, ISLAMIC REPUBLIC OF

Co Author(s):    F. Kianersi   A. Dehghani   A. Jamshidimadad              

Abstract Details

Purpose:

The aim of the study was to compare the retinal ischemia changes and the retinal neovascularization regression between these two techniques.

Setting:

prospective randomized clinical trial

Methods:

A prospective clinical trial was done in 146 eyes of 73 patients with proliferative diabetic retinopathy. One eye of patients was treated with single spot laser photocoagulation randomly and other eye was preserved for pattern scan laser photocoagulation. The changes of retinal ischemia on basis non capillary perfusion and the regression of neovascularization on basis amount of leakage on fluorescein angiography were compared between two groups after 6 months.

Results:

There was no significant difference in the retinal neovascularization regression of disc and elsewhere in eyes treated with pattern scan or single spot laser (P value=0.26 and 0.31 respectively). While the areas of the retinal ischemia progression was significantly higher in group treated with pattern scan in comparison to other group. (P value=0.02)

Conclusions:

The areas of retinal ischemia progression were higher after treatment with pattern scan laser compared to single spot laser. Future researches are recommended to find a better modality than the pattern scan to induce regression of the retinal ischemia similar to the single spot laser.

Financial Disclosure:

NONE