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Experimental study on vascular cast after radial optic neaurotomy
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF OCULAR FUNDUS DISEASES
- Issue:
- 3
- DOI:
- 10.3760/j.issn:1005-1015.2007.03.005
- Key Word:
- 视神经/外科学;角膜切开术;辐射状;腐蚀铸型;猫
Abstract： 目的 利用血管铸型技术观察猫眼行视神经放射状切开术(RON)后视盘血管构筑的改变.方法 健康成年家猫10只共20只眼,随机取单眼(共10只眼)行RON,对侧10只眼为正常对照.手术后90 d 20只眼均做树脂血管铸型标本,扫描电子显微镜下观察.结果 正常对照组:视盘血供主要来源是睫状后短动脉、软膜动脉和睫状视网膜动脉,视盘周围的脉络膜毛细血管不参与筛板前区血供,未见视网膜中央血管系统和视神经周围完整的动脉环.手术组:手术切口处的视盘、视网膜血管和脉络膜毛细血管呈"V"型缺损,未造成视网膜大血管和脉络膜大血管层的损伤;未见切口处新生血管.结论 RON可以造成视盘和周围局部组织的血管缺损,切口深度未达到秦氏环的解剖位置.
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