频谱光学相关断层扫描观察眼内硅油取出术前后黄斑区形态的变化

Macular appearance before and after silicon oil removal observed by spectral optical coherence tomography

目的利用频谱光学相关断层扫描(SOCT)观察患者硅油眼行取油手术前后黄斑区形态的变化,探讨患眼的最佳矫正视力(BCVA)与黄斑区厚度及黄斑裂孔底径的相关性。方法收集20例(20眼)视网膜脱离复位术后的硅油填充眼,其中黄斑裂孔性视网膜脱离组9例(A组),非黄斑裂孔性视网膜脱离组11例(B组)。在行硅油取出术前后进行眼科临床检查,包括BCVA、眼底照相及SOCT等。结果 A组取油前后BCVA变化与黄斑裂孔底径的变化无相关性(r=-1.02,P=0.394);B组取油前的BCVA与黄斑中心凹厚度呈显著负相关(r=-0.75,P=0.008),而取油前后BCVA变化与黄斑中心凹厚度的变化无相关性(r=-2.66,P=0.059)。结论 SOCT作为无创观察黄斑区形态的辅助检查具有重要价值。非黄斑裂孔性视网膜脱离在硅油填充时期BCVA与黄斑中心凹厚度呈负相关。

Objective To observe the macular appearance before and after silicon oil removal by spectral optical coherence tomography（SOCT）,and investigate the correlation of best corrected visual acuity（BCVA） with foveal thickness and diameter of macular hole.Methods Twenty patients（20 eyes） underwent vitrectomy with silicon oil tamponade for retinal detachment,including 9 patients with retinal detachment due to macular hole（group A） and 11 patients with retinal detachment without macular hole（group B）.Before and after silicon oil removal,ophthalmic examinations including BCVA,SOCT and fundus photography were performed.Results There was no correlation of change of diameter of macular hole with change of BCVA after silicon oil removal in group A（r=-1.02,P=0.394）.There was a significantly negative correlation of BCVA with foveal thickness before silicon oil removal in group B（r=-0.75,P=0.008）,while there was no correlation of change of BCVA with change of foveal thickness after silicon oil removal in group B（r=-2.66,P=0.059）.Conclusion SOCT is an important noninvasive technique to observe the macular appearance.There is a negative correlation of BCVA with foveal thickness in silicon oil tamponade of patients with retinal detachment without macular hole.