July 02, 2014
1 min read

Vitrectomy helps normalize reduced contrast sensitivity caused by floaters

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Symptomatic vitreous floaters reduce contrast sensitivity function; however, vitrectomy appears to be an effective approach to addressing this issue, according to recent study data.

Researchers examined 76 eyes with floaters in two separate studies. After undergoing 25-gauge vitrectomy, 16 eyes with floaters and 16 age-matched controls were evaluated for up to 9 months in an efficacy study. The remaining 60 cases were evaluated for safety, with a mean follow-up of 17.5 months.

Prior to vitrectomy, contrast sensitivity function was diminished in 67.4% of eyes with floaters compared with controls; however, contrast sensitivity function normalized in each case by 1 week post-vitrectomy and remained stable at 1, 3 and 9 months. All but one patient experienced complete resolution of floater symptoms, according to the researchers. Although Visual Function Questionnaire scores were 28.3% lower among patients with floaters than in controls prior to vitrectomy, postoperative scores improved by 29.2%.

In the safety study, none of the patients with floaters treated with vitrectomy had developed retinal breaks, retinal detachments, endophthalmitis, intraocular hemorrhage or glaucoma at follow-up. Eight of 34 patients required cataract surgery at a mean 15 months postoperatively; however, all of these patients were at least 53 years old, according to the researchers. Among the 19 eyes without posterior vitreous detachment before vitrectomy, only one eye developed posterior vitreous detachment after surgery, 13 months later.

Disclosure: The authors have no relevant financial disclosures.