评估伴有或不伴有小角膜的脉络膜缺损患者巩膜切开切口的安全性。
Evaluation of the safety of sclerotomy incision in patients with choroidal colobomas with/without associated microcornea.
作者信息
Liu Tiecheng, Zhang Maonian, Xu Bing, Wang Weifeng, Lee Janet, Gao Yinghui, Zhang Xuemin
机构信息
*Department of Ophthalmology, Chinese PLA General Hospital, Beijing, China; †Department of Ophthalmology, Hainan Branch of Chinese PLA General Hospital, Sanya, China; ‡Department of Ophthalmology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China; §Department of Gastroenterology and Hepatology, Hainan Branch of Chinese PLA General Hospital, Beijing, China; ¶Department of Ophthalmology and Shiley Eye Center, University and California, San Diego, La Jolla, California; and **Department of Ophthalmology, Affiliated Hospital of Weifang Medical University, Weifang, China.
出版信息
Retina. 2014 Nov;34(11):2300-5. doi: 10.1097/IAE.0000000000000227.
PURPOSE
Whether the position of the ora serrata is normal in patients with choroidal colobomas remains unknown. The aim of this study was to measure the distance between the ora serrata and limbus in these patients and define safe sclerotomy sites for standard three-port pars plana vitrectomy.
METHODS
Twelve patients with choroidal colobomas with normal corneas (Group 1) and 11 patients with choroidal colobomas with microcornea (Group 2) were included in the study. Twelve patients with simple retinal detachment served as control subjects. All participants underwent vitrectomy. The distance between the limbus and ora serrata, corneal diameter, and ocular axial length were measured.
RESULTS
The average corneal diameter was 10.9 mm in Group 1, 7.9 mm in Group 2, and 11.4 mm in the control group. The average distance between the limbus and ora serrata was 6.3 mm in Group 1, 7.6 mm in Group 2, and 6.2 mm in the control group. There were significant differences in the distance between the limbus and ora serrata among the 3 groups (analysis of variance test, P < 0.05).
CONCLUSION
Our study confirmed that it is safe to perform a sclerotic puncture 4 mm posterior to the limbus for vitrectomy in patients with choroidal colobomas with or without microcornea.
目的
脉络膜缺损患者的锯齿缘位置是否正常尚不清楚。本研究的目的是测量这些患者中锯齿缘与角膜缘之间的距离，并确定标准三通道玻璃体切割术安全的巩膜穿刺部位。
方法
本研究纳入12例角膜正常的脉络膜缺损患者（第1组）和11例小角膜的脉络膜缺损患者（第2组）。12例单纯视网膜脱离患者作为对照。所有参与者均接受玻璃体切割术。测量角膜缘与锯齿缘之间的距离、角膜直径和眼轴长度。
结果
第1组平均角膜直径为10.9mm，第2组为7.9mm，对照组为11.4mm。第1组角膜缘与锯齿缘之间的平均距离为6.3mm，第2组为7.6mm，对照组为6.2mm。3组之间角膜缘与锯齿缘之间的距离存在显著差异（方差分析检验，P<0.05）。
结论
我们的研究证实，对于有或没有小角膜的脉络膜缺损患者，在角膜缘后方4mm处进行巩膜穿刺以进行玻璃体切割术是安全的。
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