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Vision loss under silicone oil tamponade. | LitMetric
Purpose : We aimed to investigate frequency, time course and pathophysiology of vision loss in eyes with macula-on rhegmatogenous retinal detachment operated with vitrectomy and silicone oil tamponade.Patients And Methods : Fifteen eyes of 15 patients who had been operated with 5,000 centistoke silicone oil between 2006 and 2014 were included in a retrospective case series. Examinations included logMAR best corrected visual acuity (BCVA), visual field testing (VF), spectral domain optical coherence tomography (OCT), electrophysiology, and fluorescein angiography.Results : Vision loss was seen in eight (53 %) eyes of 15 patients with symptomatic central scotoma, which was confirmed by VF (5/6). Preoperative median BCVA of these patients was 0.15 (0.5 to 0), prior to oil removal 0.7 (1.0 to 0.5), and 6 weeks post oil removal 1.0 (1.5 to 0.2). BCVA recovered in five patients to a median of 0.15 (0.5 to 0.1), and it remained 1.0 in three (20 %) out of 15 eyes. OCT revealed significant thinning of the foveal and parafoveal combined nerve fiber, ganglion cell and inner plexiform layers in affected eyes (mean 58.3 μm +/-13, horizontal scan through fovea, 500 μm radius) compared to their healthy fellow eyes (mean 84.5 μm +/-12.3; p < 0.01, n = 6 patients, 12 eyes) and compared to eyes with no vision loss under silicone oil.Conclusions : We find persisting vision loss in three out of 15 patients treated for macula-on rhegmatogenous retinal detachment with silicone oil tamponade. Thinning of inner retinal layers possibly evoked by silicone oil tamponade might be a pathophysiological explanation for vision loss in these patients.
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