硅油填充眼的光学相干断层扫描分析

Optical coherence tomography in silicon oil tamponade eyes

目的观察玻璃体切割术后硅油眼的光学相干断层扫描(OCT)特点。方法对37例行玻璃体切割联合硅油填充术者分别于术后2周,1、2、3个月行OCT检查,分析其图像特点及其与视力的相关性。结果黄斑中心凹厚度和最佳矫正视力(BCVA)的负对数之间为正相关(r1=0.628,P1=0.000;r2=0.583,P2=0.000;r3=0.591,P3=0.000)。随访的37例中OCT显示黄斑中心凹厚度正常5眼(13.51%);黄斑视网膜变薄1眼(2.70%);黄斑水肿31眼(83.78%)。结论OCT的穿透深度不受玻璃体腔硅油的限制,是评价玻璃体切割术后硅油眼视网膜形态功能的必不可少的辅助检查手段。

Objective This study was to investigate the optical coherence tomography （OCT） features of silicone oil temponed eyes after posterior vitrectomy. Methods OCT was applieated in 37 silicone oil temponed eyes to scan the maeula area at 2 weeks, 1 month,2 months and 3 months after uneventful posterior vitreetomy eyes. Vary regression analysis was carried out to assess the relationship of visual acuity and foveal thickness in the eyes. Results There was a positive linear correlation between the mean macular foveal thickness and the negative LOG of best corrected visual acuity （BCVA） in silicone oil tamponaded eyes in 1 month ,2 and 3 months after surgery （ r1 = 0. 628, P1 = 0. 000 ; r2 = 0. 583, P2 = 0. 000 ; r3 = 0. 591, P3 = 0. 000）. In 37 follow-up patients,5 eyes presented the normal maeular foveal thickness in OCT（ 13.51% ）,and 1 eye showed thinning of macular retina（2.70% ）. Macular edema was found in 3l eyes（ 83.78% ）. Conclusion OCT is not affected by silicon oil tamponade, so it is an useful technique for quantifying macular thickness, assessing postoperative visual acuity and finding undetected diseases in the eyes after posterior vitreetomy.