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OCT useful for assessing vitreous surgery

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Optical coherence tomography (OCT) results showed that patients with diffuse diabetic macular edema with vitreomacular traction may benefit from vitrectomy, researchers said.

Pascale Massin, MD, PhD, and colleagues here at Hôpital Lariboisière retrospectively reviewed 15 eyes of 13 patients who had undergone vitrectomy for diffuse diabetic macular edema (DME) and OCT preoperatively and postoperatively. In the first group (seven eyes, six patients) vitrectomy was performed because of vitreomacular traction observed on biomicroscopy or OCT. In the other eight eyes, vitrectomy was performed for DME with no vitreomacular traction or OCT. Mean follow-up was 18 months.

In the first group, retinal thickness decreased significantly and mean best corrected visual acuity (BCVA) improved to 20/80 from 20/100. In the second group retinal thickness decreased after surgery, but mean BCVA worsened from 20/100 to 20/200 at the end of the follow-up period.

The study is published in the February issue of American Journal of Ophthalmology.