May 21, 2013
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Minimally invasive vitrectomy effective for floaters

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LA JOLLA, Calif. — Minimally invasive vitrectomy effectively alleviated visual dysfunction induced by floaters while normalizing contrast sensitivity, according to a physician here.

“These floaters have a significant impact on the quality of life, and we believe that it is by degradation of vision,” J. Sebag, MD, FACS, FRCOphth, FARVO, said at the American Ophthalmological Society meeting.

J. Sebag, MD, FACS, FRCOphth, FARVO

J. Sebag

The study included 69 eyes of 54 patients with floaters who underwent minimally invasive 25-gauge vitrectomy. They were compared with a control group of 42 eyes of 26 patients.

Vitrectomy was completed without induction of the posterior vitreous detachment while inserting a non-hollow probe for superior cannula extraction, leaving anterior vitreous intact. Average follow-up was 15.5 months.

Contrast sensitivity was prospectively assessed using Freiburg Acuity Contrast Testing in 13 eyes of 10 patients and compared with age-matched controls. Patients with floaters were found to have a 52% lower Weber index score than controls.

“The lower the number the better, and so this 52% attenuation in contrast sensitivity by floater patients was a substantial and statistically significant finding,” Sebag said.

Disclosure: Sebag is an equity owner in, a consultant for and receives lecture fees from ThromboGenics.