Bontzos Georgios, Tsilimbaris Miltiadis, Papadaki Efrosini, Maris Thomas G, Mazonakis Michael, Detorakis Efstathios T
Department of Ophthalmology, University Hospital of Heraklion, Heraklion, Crete, Greece.
Department of Radiology, University Hospital of Heraklion, Heraklion, Crete, Greece.
Middle East Afr J Ophthalmol. 2018 Jul-Dec;25(3-4):131-136. doi: 10.4103/meajo.MEAJO_45_18.
Posterior staphyloma is an ocular complication associated with high myopia and reflects degenerative changes on the sclera. Its morphology is associated with chorioretinal atrophy and myopic maculopathy. The purpose of this study was to validate the efficacy of optical coherence tomography (OCT) in providing a simple estimation of the staphyloma pattern.
Observational case-series study of high myopic patients with posterior staphylomas. Patients were examined using the star scan pattern OCT in different radial planes. Three-dimensional (3D) magnetic resonance tomography was also performed to visualize the anatomical characteristics of the posterior pole. 3D-segmentation and curvature analysis were also performed.
Eight patients were totally enrolled in this pilot study. Our study pool consisted of 2 wide macular staphylomas, 2 narrow macular staphylomas, and 4 barrel-shaped staphylomas. Our preliminary results revealed that patients displayed mirror-image distortion in the steeper staphyloma axis. In the barrel-shaped subtype, no image distortion was displayed in any plane.
We estimated the axis of the smaller base curvature by noting the distortion pattern in the different radial axis. The recognition of pathologic axial myopia is important since there is a risk of permanent vision loss from vision to threatening sequelae.
后巩膜葡萄肿是一种与高度近视相关的眼部并发症，反映了巩膜的退行性改变。其形态与脉络膜视网膜萎缩和近视性黄斑病变相关。本研究的目的是验证光学相干断层扫描（OCT）在简单评估葡萄肿形态方面的有效性。
对患有后巩膜葡萄肿的高度近视患者进行观察性病例系列研究。使用星状扫描模式OCT在不同径向平面检查患者。还进行了三维（3D）磁共振断层扫描以可视化后极的解剖特征。还进行了3D分割和曲率分析。
8名患者完全纳入了这项初步研究。我们的研究对象包括2例宽黄斑部巩膜葡萄肿、2例窄黄斑部巩膜葡萄肿和4例桶状巩膜葡萄肿。我们的初步结果显示，患者在较陡的葡萄肿轴上表现出镜像扭曲。在桶状亚型中，任何平面均未显示图像扭曲。
我们通过注意不同径向轴上的扭曲模式来估计较小基底曲率的轴。认识病理性轴性近视很重要，因为存在视力永久性丧失至威胁性后遗症的风险。
