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目的使用光学相干断层成像仪(OCT)的视网膜地形图观察视网膜分支静脉阻塞(Branch Retinal Vein Occlusion,BRVO)所致黄斑水肿的图像特征,监测黄斑水肿的变化,探讨BRVO所致黄斑水肿患者黄斑中心凹1mm直径范围(黄斑中心凹区)视网膜厚度与最佳矫正视力之间的关系。方法使用OCT对17人17眼发病后3个月以内、继发于BRVO的黄斑水肿患者行视网膜地形图检查,对图像进行分类并随访观察,将初诊时黄斑中心凹区视网膜厚度与最佳矫正视力进行相关分析。结果根据黄斑水肿范围及程度的不同将黄斑水肿的视网膜地形图分为3种类型,视网膜地形图对黄斑水肿的轻微变化非常敏感,黄斑中心凹区视网膜厚度与最佳矫正视力呈负相关。结论OCT的视网膜地形图可有效地观察BRVO所致黄斑水肿的范围及程度,并可用于监测黄斑水肿的发展以及治疗后水肿的变化,早期BRVO(发病后3个月以内)所致黄斑水肿患者黄斑中心凹区视网膜厚度与最佳矫正视力呈负相关。
Objective To observe the retinal topography of retinal detachment vein occlusion (BRVO) caused by macular edema by optical coherence tomography (OCT) images and monitor the changes of macular edema. To investigate the changes of macular center Relationship between retinal thickness and best corrected visual acuity in the concave 1 mm diameter range (foveal foveal). Methods OCT was performed on 17 eyes of 17 patients within 3 months after onset. Retinal topography was performed in patients with macular edema secondary to BRVO. The images were classified and followed up. The retinal thickness at the foveal site was compared with the best corrected Visual correlation analysis. Results According to the extent and extent of macular edema, the retinal topography of macular edema was divided into three types. Retinal topography was very sensitive to the slight changes of macular edema. Retinal thickness in the foveal area was negatively correlated with the best corrected visual acuity. Conclusion The retinal topography of OCT can effectively observe the extent and degree of macular edema caused by BRVO and can be used to monitor the development of macular edema and edema after treatment. Patients with macular edema in early BRVO (within 3 months after onset) Retinal thickness in the foveal zone was negatively correlated with best corrected visual acuity.