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  • Title: Vitrectomy and release of presumed epipapillary vitreous traction for treatment of nonarteritic anterior ischemic optic neuropathy associated with partial posterior vitreous detachment.
    Author: Modarres M, Sanjari MS, Falavarjani KG.
    Journal: Ophthalmology; 2007 Feb; 114(2):340-4. PubMed ID: 17270682.
    Abstract:
    OBJECTIVE: To study the results of vitrectomy and release of epipapillary vitreous adhesions for the treatment of nonarteritic anterior ischemic optic neuropathy (NAION) associated with partial posterior vitreous detachment (PVD). DESIGN: Prospective noncomparative interventional case series. PARTICIPANTS: A series of 16 patients with clinical picture of NAION and small discs associated with partial PVD, diagnosed clinically and confirmed by optical coherence tomography and B-scan ultrasonography. INTERVENTION: All patients underwent standard pars plana vitrectomy with meticulous removal of epipapillary vitreous adhesions within 1 month from the onset of visual symptoms. MAIN OUTCOME MEASURES: Best-corrected visual acuity (BCVA), mean deviation of visual fields, and color vision testing. RESULTS: In 15 patients BCVA improved (93.7%), mean preoperative BCVA was 6/38 (0.82+/-0.53 logarithm of the minimum angle of resolution [logMAR]), which improved to 6/18 (0.49+/-0.37 logMAR) postoperatively at 3 months. Nine eyes (56%) had > or =3 lines of visual improvement. Visual fields improved in 4 patients and color vision improved in 1 patient. CONCLUSION: Vitreous traction from partial PVD may have a causative role in some cases of NAION associated with small discs. In these cases, vitrectomy and removal of epipapillary vitreous may result in improvement of visual acuity.
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