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Macular photocoagulation has short-term treatment effect on macular edema

Retina. 2010;30(10):1622-1626.

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Short-duration pattern scanning laser macular photocoagulation has a biological treatment effect at 4 months for patients with clinically significant macular edema caused by diabetes, according to a study.

In the retrospective analysis, researchers reviewed visual acuity and optical coherence tomography data from patients enrolled in a modified style of the Early Treatment Diabetic Retinopathy Study. One hundred eyes of 70 patients were treated with the PASCAL photocoagulation unit (OptiMedica).

Four months after treatment, visual acuity improved from 20/45 to 20/40, which was approximately three ETDRS letters.

Researchers also observed a statistically significant reduction in central OCT thickness.

"These findings are similar to the recently published results from the diabetic retinopathy clinical research network cohort," the authors said. "PASCAL laser photocoagulation for clinically significant macular edema appears safe and effective in the short term and may have significant long-term advantages."