CONTROLLED CLINICAL TRIAL
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Intravitreal bevacizumab for the treatment of nonarteritic anterior ischemic optic neuropathy: a prospective trial.

Eye 2013 April
PURPOSE: There is currently no accepted treatment for Nonarteritic Anterior Ischemic Optic Neuropathy (NAION). One new therapeutic approach involves decreasing optic nerve edema with intravitreal bevacizumab in order to resolve a proposed compartment syndrome.

METHODS: In this non-randomized controlled clinical trial, 1.25 mg intravitreal bevacizumab was compared with natural history. Patients were examined at baseline, 1, 3, and 6 months with a full neuro-ophthalmic exam, automated perimetry, and optic nerve optical coherence tomography (OCT) measurements. The primary outcome measure was change in mean deviation on Humphrey visual field testing. Secondary outcome measures were change in visual acuity and optic nerve OCT thickness. Incidence and type of complications were also recorded.

RESULTS: Twenty-five patients were enrolled (17 treatment and 8 control). There was no significant effect of treatment on the primary outcome measure of mean deviation score (P=0.4). There was similarly no effect of group assignment on the secondary outcome measures of change in mean Early Treatment Diabetic Retinopathy Study letters (P=0.33) or nerve fiber layer thickness on OCT (P=0.11). In the bevacizumab group, there was one case of a corneal abrasion and two cases of recurrent NAION. No other complications were noted.

CONCLUSIONS: We found no difference between bevacizumab and natural history for change in visual field, visual acuity, or optic nerve OCT thickness. Based on the current evidence we would not recommend the use of intravitreal bevacizumab to treat patients with the new onset of NAION.

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