高度近视患者超声乳化白内障吸出手术后 视网膜黄斑区的光相干断层扫描检查 

目的观察高度近视患者超声乳化白内障吸出手术后视网膜黄斑区的变化。方法20例眼轴≥27 mm的高度近视患者，单眼超声乳化白内障吸出手术前后1周分别行手术眼和对侧未手术眼的视网膜光相干断层扫描(OCT)检查，对比观察手术眼黄斑区OCT图像的变化。结果高度近视患者超声乳化白内障吸出手术前后1周时视网膜黄班中心凹的平均厚度分别为(131.6±16.37)、(189.75±45.69) μm，二者比较，差异有统计学意义(t=2.805，P=0.01)。未手术眼同时测定的视网膜黄班中心凹的平均厚度分别为(133.5±15.12)、(133.5±14.63)μm，二者比较，差异无统计学意义(t=1.367，P=0.853)。手术后1周时,20只手术眼中，3只眼发现明显的黄斑周围玻璃体条索牵引并伴有视网膜的增厚；1只眼出现黄斑区视网膜劈裂；2只眼手术后视网膜增厚明显并伴有轻度视网膜水肿。结论高度近视患者超声乳化白内障吸出手术后视网膜厚度明显增加，部分患者出现玻璃体条索对视网膜的牵拉，部分患者出现亚临床状态的视网膜劈裂。(中华眼底病杂志,2005,21:90-92)

Changes of macula in patients with high myopia after phacoemulsification

ObjectiveTo observe the changes of macula in patients with high myopia after phacoemulsification. MethodsIn 20 patients with high myopia with ocular axial length≥27 mm, optical coherence tomography (OCT) was performed on the operative and contralateral eyes 1 week before and after monocular phacoemulsification, respectively, and the OCT images of macula of the operative eyes were observed and compared.ResultsOne week before and after phacoemulsification, the mean macular fovea thickness of the patients with high myopia was (131.6±16.37) μm and (189.75±45.69) μm, respectively, with a significant difference (t=2.805, P=0.01). Simultaneously, the mean macular fovea thickness of the contralateral eyes was (133.5±15.12) μm and (133.5±14.63) μm, respectively, with a non-significant difference (t=1.367, P=0.853). In 20 operative eyes 1 week after phacoemulsification, 3 had vitreous strand around the macula with retinal thickening, 1 had retinoschisis in macular area, and 2 had obvious retinal thickening with slight retinal edema.ConclusionRetinal thickening occurs in the patients with high myopia after phacoemulsification. Traction of retina by vitreous strand or subclinical retinoschisis may occur in some patients.(Chin J Ocul Fundus Dis, 2005,21:90-92)