未累及黄斑区的视网膜分支静脉阻塞患眼对比敏感度变化观察  

Altalysis of the contrast sensitivity of branch retinal vein occlusion without involving the macular region

作　　者：王志学[1] 曹婷婷[1] 王文英[1] 王雪[1] 刘明远[1] 

机构地区：[1]河北省沧州市中心医院眼科功能检查室,061001

出　　处：《中华眼底病杂志》2016年第4期395-398,共4页Chinese Journal of Ocular Fundus Diseases

摘　　要：目的 观察未累及黄斑区的视网膜分支静脉阻塞（BRVO）患眼对比敏感度（CS）的变化。方法 临床确诊的BRVO患者92例93只眼以及同期无器质性眼病者56例112只眼（对照组）纳入研究。根据阻塞区域的不同将BRVO患眼分为鼻侧BRVO组、颞侧BRVO组，分别为31、62只眼。平均矫正视力分别为1.02±0.13、0.98±0.12。根据缺血类型分为非缺血型BRVO组和缺血型BRVO组，分别为58、35只眼。平均矫正视力分别为1.01±0.14、0.99±0.12。对照组平均矫正视力为1.03±0.11。鼻侧BRVO组、颞侧BRVO组患眼平均矫正视力与对照组比较，差异无统计学意义（F=3.03，P=0.06）；缺血型BRVO组、非缺血型BRVO组患眼平均矫正视力与对照组比较，差异无统计学意义（F=1.60，P=0.20）。采用美国Stereo公司OPTEC6500视功能检查仪行CS检查。统一标准照明条件下，选择设备自带远距离程序分别测试低中高空间频率处的CS。其中，低频空间频率为1.5、3.0周/度（c/d）；中频空间频率（中频）为6.0 c/d；高频空间频率（高频）为12.0、18.0 c/d。对比观察各组患眼各空间频率CS变化。 结果 鼻侧BRVO组患眼各空间频率CS与对照组比较，差异无统计学意义（t=4.25、9.48、3.08、5.86、0.94,P＞0.05）；颞侧BRVO组患眼各空间频率CS与对照组比较，差异有统计学意义（t=8.59、19.11、10.38、17.28、6.01，P＜0.05）。颞侧BRVO组患眼高频CS与鼻侧BRVO组比较，差异有统计学意义（t=11.42、6.95,P＜0.05）。缺血型BRVO组患眼各空间频率CS与对照组比较，差异有统计学意义（t=8.88、10.56、11.64、19.06、6.67,P＜0.05）。非缺血型BRVO组患眼中频、高频CS与对照组比较，差异有统计学意义（t=10.14、11.54、2.82, P＜0.05）；非缺血型BRVO组患眼高频CS与缺血型BRVO组比较，差异有统计学意义（t=7.52、3.84, P＜0.05）。 结论 与对照组比较，未累及黄斑区的颞侧以及缺血型Objective To observe the contrast sensitivity （CS） of patients with branch retinal vein occlusion （BRVO） without involving the macular region. Methods 92 BRVO patients （93 eyes） and 56 cases （112 eyes） without eye diseases （control group） were included in the study. According to different region, BRVO patients were divided into the nasal BRVO group （31 eyes） and temporal BRVO （62 eyes） group, and the average corrected visual acuity was 1.02 ± 0.13 and 0.98 ± 0.12 respectively. According to the type of ischemia, BRVO patients were divided into the nonischemic BRVO group （58 eyes） and ischemic BRVO group （35 eyes）, the average corrected visual acuity was 1.01±0.14 and 0.99±0.12 respectively. The average corrected visual acuity of the control group was 1.03 ± 0.11. There was no statistically significant difference of the average corrected visual acuity between nasal BRVO group, temporal BRVO group and control group （F=3.03, P=0.06）, and between nonischemic BRVO group, ischemic BRVO group and control group （F=1.60,P=0.20）. Contrast sensitivity （CS） was measured by OPTEC 6500 vision tester （Stereo Company, USA） under the standard lighting conditions and different spatial frequencies including low （1.5 and 3.0 c/d）, medium （6.0 c/d） and high frequencies （12.0 and 18.0 c/d）. Results The CS under each spatial frequency of the nasal BRVO group was the same as the control group（t=4.25, 9.48, 3.08, 5.86, 0.94; P〉0.05）, but the CS under each spatial frequency of the temporal BRVO group was different from the control group （t=8.59, 19.11, 10.38, 17.28, 6.01; P〈0.05）. The CS under high spatial frequency of the temporal and nasal BRVO group was statistically different （t=11.42, 6.95; P〈0.05）. The CS under each spatial frequency of the ischemic BRVO group was different from the control group （t=8.88, 10.56, 11.64, 19.06, 6.67; P〈0.05）.The CS under 6, 12 and 18 c/d spatial frequency of the nonischemic BRVO group was statistically diffe

关 键 词：视网膜静脉闭塞/病理生理学 对比敏感度 

分 类 号：R774.1[医药卫生—眼科]