轴长在视网膜分支静脉阻塞中的意义

Significance of axial length in branch retinal vein occlusion

目的评价眼轴长度（简称轴长）在视网膜分支静脉阻塞（ｂｒａｎｃｈｒｅｔｉｎａｌｖｅｉｎｏｃｃｌｕｓｉｏｎ，ＢＲＶＯ）中的意义。方法３４例ＢＲＶＯ和３４例选自白内障摘除而年龄和性别相配的对照病例，做了轴长的对比研究，轴长应用Ａ型超声测量。结果ＢＲＶＯ组患眼和对侧眼的轴长比较无统计学差异（Ｐ＞０．２０）；ＢＲＶＯ组患眼轴长平均（２３．１６±０．８２）ｍｍ，对照组眼的轴长平均（２３．７８±１．０６）ｍｍ，两者差异无显著（Ｐ＞０．１０）。结论作为远视眼依轴长测定结果并不是ＢＲＶＯ发病的一种危险因素。

Purpose To evaluate the significance of axial length in case of branch retinal vein occlusion(BRVO). Methods A case control study of axial length was performed using 34 patients with BRVO and 34 age and sex matched control patients selected from a list of subjects who had undergone cataract extraction.Axial length measurement were taken with an A scan ultrasonography. Results The affected and fellow eye in patinets of BRVO group did not differ statistically in axial length(P>0.20).The mean axial length of affected eyes in BRVO group was (23.16±0.82)mm,and the mean axial length of control eyes was (23.78±1.06)mm.The difference in axial length between the eyes with BRVO and the eyes in the control group was not statistically significant(P>0.10). Conclusion Hyperopia as measured by axial length is not a risk factor to BRVO.