Toso Antonio, Cappello Ezio, Morselli Simonetta
Department of Ophthalmology, Saint Bassiano Hospital, Bassano del Grappa, Italy.
Clin Ophthalmol. 2014 Sep 11;8:1831-6. doi: 10.2147/OPTH.S67760. eCollection 2014.
Here we report a case of unexplained sudden visual loss after removal of silicone oil for rhegmatogenous retinal detachment repair. A patient with visual loss in one eye after removal of silicone oil was investigated with best-corrected Snellen visual acuity assessment, fundus biomicroscopy, optical coherence tomography, color fundus photograph, fluorescein angiography, electrophysiologic examination, automated perimetry, and visual evoked potentials. Best-corrected Snellen visual acuity was 20/30 while the silicone oil was in place. Visual acuity dropped dramatically to 20/200 after silicone oil removal. No other complications associated with oil removal were noted. The retina remained attached. Visual evoked potentials revealed decreased amplitude due to a damaged optic nerve, while the earliest central visual field defects disappeared unexpectedly almost 2 years after the last surgical procedure. No other abnormalities were demonstrated. Vision loss is a possible complication of silicone oil and removal. This case was distinguished by the permanent decrease of visual acuity despite the unexplained and quite complete recovery of the foveal threshold with no other relevant visual field defects.
在此，我们报告一例在取出用于视网膜脱离修复的硅油后出现不明原因突然视力丧失的病例。对一名取出硅油后单眼视力丧失的患者进行了最佳矫正视力评估、眼底生物显微镜检查、光学相干断层扫描、彩色眼底照相、荧光素血管造影、电生理检查、自动视野检查和视觉诱发电位检查。硅油在位时最佳矫正视力为20/30。取出硅油后视力急剧下降至20/200。未发现与取油相关的其他并发症。视网膜保持附着。视觉诱发电位显示由于视神经受损振幅降低，而最早的中心视野缺损在最后一次手术后近2年意外消失。未发现其他异常。视力丧失是硅油及其取出的一种可能并发症。该病例的特点是尽管黄斑阈值原因不明但相当完全地恢复且无其他相关视野缺损，视力仍永久性下降。
