双通道视觉分析系统评估白内障的眼表及视觉质量

Evaluation of ocular surface and visual quality of cataract by dual channel visual analysis system

目的:通过OQAS视觉质量分析系统对不同类型白内障的眼表和视觉质量进行评估。方法:横断面研究。收集2019-06/2020-06在武汉大学人民医院眼科中心的裸眼视力(UCVA)≤0.5的年龄相关性白内障患者30例30眼,平均年龄71.69±3.79岁;并发性白内障30例30眼,平均年龄61.00±4.56岁;正常对照组30例30眼,平均年龄65.34±4.06岁。由同一位医生对患者的视觉质量进行眼表和视觉质量检查,包括前房深度(ACD)、眼轴(AL)、眼压(IOP)、角膜曲率(K)、客观散射指数(OSI)、MTF截止频率(MTF cut off)、斯特尔比率(SR)、对比度视力检查VA100%、VA20%、VA9%等指标。结果:葡萄膜炎性白内障MTF cut off小于青光眼性白内障(P=0.025),大于眼底病性白内障(P=0.013),大于糖尿病性白内障(P=0.001);青光眼性白内障MTF cut off高于眼底病性白内障(P=0.013),高于糖尿病性白内障(P=0.007);眼底病性白内障MTF cut off高于糖尿病性白内障(P=0.010)。结论:各亚类并发性白内障眼表和视觉质量参数尤其是MTF cut off存在一定差异,临床上应在术前关注白内障类型。

AIM:To evaluate the visual quality of different types of cataracts by double-pass optical quality analysis system(OQAS).METHODS:A cross-sectional study was conducted.Totally 30 age-related cataract patients(30 eyes),which were aged group,with an average age of 71.69±3.79 years,thirty patients(30 eyes)with complicated cataract were in the complicated group with an average age of 61.00±4.56 years and 30 normal patients(30 eyes)were in the normal group,with an average age of 65.34±4.06 years old,both of which with naked eye vision(UCVA)≤0.5,and from June 2019 to June 2020 in the eye Center of Renmin Hospital of Wuhan University were collected.The ocular surface and optical quality examination on the patient’s visual quality,including anterior chamber depth(ACD),ocular axis(AL),IOP,corneal curvature(K),objective scattering index(OSI),MTF cut off frequency(MTF cut off),Sterl ratio(SR),contrast sensitivity VA100%,VA20%,VA9%and other visual quality were operated by the same doctor.RESULTS:Compared with glaucomatous cataract,the MTF cut off of uveitis cataract was lower(P=0.025),but higher than that of fundus cataract(P=0.013),and diabetic cataract(P=0.001).The MTF cutoff value of glaucomatous cataract was higher than that of fundus cataract(P=0.013),and diabetic cataract(P=0.007);the MTF cutoff of fundus cataract was higher than that of diabetic cataract and there was significant difference(P=0.010).CONCLUSION:There are some differences in the ocular surface and visual quality parameters of each subtype of complicated cataract,especially MTF cut off,so we should paid attention to the cataract types before surgery.