光学相干断层扫描对自发性黄斑裂孔成因的探讨

Analysis of the pathogenesis of the idiopathic macula hole with optical coherence tomography

目的 :探讨自发性黄斑裂孔的形成机制。方法 :应用光学相关断层扫描仪 (OCT)对 2 9名全层黄斑裂孔患者眼底进行扫描。结果 :2 9名患者中Ⅰ期黄斑裂孔 2眼 ,Ⅱ期 4眼。Ⅲ期 15眼 ,Ⅳ期 8眼。完全性玻璃体后脱离 8眼 ;2眼不完全脱离。存在孔盖者 10眼 ,孔盖直径平均为 2 90 5 μm ,厚度平均为 42 83 μm。结论 :OCT为自发性黄斑裂孔形成机制的研究提供了新的资料。玻璃体黄斑牵拉力在裂孔形成早期阶段起一定作用 ,其作用方向可能包括前向和切线方向。孔盖的形态。

To analyze the pathogenesis of the idiopathic macula hole with optical coherence tomography (OCT). Methods:OCT scanning was performed in 29 patients with full thickness macular hole. Results:Two eyes with macular hole were in stage 1,4 eyes in stage 2,15 eyes in stage 3 and 8 eyes in stage 4.Completely detached posterior vitreous was detected in 8 eyes,and partially detached posterior vitreous in 2 eyes.Opercula was observed in 10 eyes,of which the mean diameter was 290.5μm and mean thickness was 42.83μm. Conclusions:OCT can provide new information for the pathogenesis of the idiopathic macula hole.Vitreous fovea traction played some roles in the formation of idiopathic macula hole in its early stage,but the traction included anterior and tangential direction.The appearance and size of opercula supported the hypothesis of Yamada.