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首页> 外文期刊>Japanese Journal of Ophthalmology >Prefoveolar membrane in macular hole opercula formation
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Prefoveolar membrane in macular hole opercula formation

机译：黄斑裂孔小眼形成中的前牙槽膜

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Purpose: To better understand the process of macular hole opercula formation by both optical coherence tomography and intraoperative observations.Methods: Seventy-nine eyes of 71 consecutive patients with stages I to 3 idiopathic macular holes were studied using optical coherence tomography (OCT). In eyes with stage I or 2 holes undergoing vitrectomy, meticulous observation of the posterior hyaloid and the macular hole was carried out before and after peeling of the posterior hyaloid.Results: In 6 of 12 eyes with stage 1 holes, OCT showed tiny steps on the anterior wall of the foveal cyst, connecting to the detached posterior hyaloid face. In eyes with stage 2 holes, opercula were incompletely detached and connected to the hole edge. In eyes with stage 1 holes that were operated on, a small semitransparent opacity was noted at the posterior hyaloid face after peeling of the posterior hyaloid in the absence of defects of the anterior wall of the cyst. In 10 of 12 eyes with stage 2 holes undergoing vitrectomy, the size of the foveal opening remained unchanged after peeling of the posterior hyaloid, and a semitransparent opacity was observed at the detached hyaloid face. All opercula in stage 3 holes that were clearly imaged by OCT were positioned above the plane of the posterior hyaloid face.Conclusions: These findings suggest that the anterior wall of an evolving macular hole is composed of two layers: a prefoveolar membrane and the inner retinal layer. The prefoveolar membrane may play an important role in both persistent vitreofoveal adhesion and macular hole opercula formation. (C) Japanese Ophthalmological Society 2004.
机译：目的：通过光学相干断层扫描和术中观察来更好地了解黄斑裂孔的形成过程。方法：采用光学相干断层扫描（OCT）研究71例I至3期特发性黄斑裂孔连续患者的79眼。在有I期或2孔玻璃体切除术的眼中，在透明后玻璃体剥离之前和之后，仔细观察了后玻璃体和黄斑裂孔的结果。结果：在12眼具有1期孔的6眼中，OCT上有微小的台阶中央凹囊肿的前壁，连接到分离的后玻璃样脸。在具有第2阶段孔的眼中，眼睑未完全脱离并连接到孔边缘。在进行了第1阶段孔手术的眼中，在没有囊肿前壁缺损的情况下，在剥离后玻璃样透明玻璃后，在玻璃样透明玻璃后表面发现了一个小的半透明的不透明性。在进行玻璃体切除术的第2阶段孔的12只眼中，有10只眼的中央凹开口大小在后透明眼玻璃样膜剥离后保持不变，并且在透明的透明膜表面观察到半透明的不透明性。经OCT清晰成像的第3阶段孔的所有骨均位于后玻璃样面部的平面上方。结论：这些发现表明，不断发展的黄斑裂孔的前壁由两层组成：前凹膜和视网膜内膜层。中央凹前膜可能在持续的玻璃体小囊粘连和黄斑孔小眼形成中起重要作用。 （C）日本眼科学会2004。

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