摘要
目的探讨光学相干断层成像术(opticalcoherence tomography,OCT)检测视网膜神经纤维层(retinal nenre fiberlaver,RNFL)厚度与原发性慢性闭角型青光眼(primary chronic angle-closure glaucoma,Chronic PACG)病程进展的关系,评价OCT在早期诊断青光眼中的意义。方法正常人20例(40眼)及分成早期、进展期、晚期的Chronic PACG 20例(38眼),采用OCT进行视盘周围RNFL厚度检测,比较正常组及Chronic PACG组的各象限及平均RNFL厚度。结果Chronic PACG组较正常组RNFL平均厚度明显变薄(P<0.001);早期Chronic PACG表现为局限性RNFL缺损,以下方最为显著(P<0.001),晚期Chronic PACG表现为弥漫性RNFL缺损;早期、进展期、晚期Chronic PACG患者RNFL厚度差异有显著性(P<0.001)。结论随着Chronic PACG病情的发展,RNFL厚度逐渐减少,OCT能够反映青光眼RNFL厚度的改变,并能为临床早期诊断青光眼提供更多的信息。
Objective To evaluate the relationship between disease development and retinal nerve fiber layer thickness（RNFL） by optical coherent tomography（ OCT）and to access the significance of OCT in the early diagnosis of primary chronic angleclosure glaucoma（Chronic PACG ） .Methods The thickness of RNFL was quantified by OCT in 20 normal controls（40 eycs ）, and 20 patients with Chronic PACG（38 eyes）.Chronic PACG case were divided into early,advanced and last stages.Average and segmental RNFL thickness values were compared between two groups. Results The average RNFL was signiticanfly thinner in Chronic PACG than in normal conrtols（ P 〈 0.001） ;The RNFL of early ghucomatous patients showed local defect, especially in inferior quadrants（ P 〈 0.001 ）, The RNFL of late glaucomatous patients showed diffuse defect; There are significant difference among the three stages （early, advanced and last） of glaucomatous group（ P 〈 0.001 ）. Conclusion The RNFL thickness gradually decrease while the devdopmeat of Chronic PACG. Measurement of RNFL thickness by OCT is useful in detecting early RNFL damage Furthermore, OCT measurement of RNFL thickness may provide clinically relevant information in monitoring glaucomatous changes.
出处
《中国实验诊断学》
2006年第7期763-766,共4页
Chinese Journal of Laboratory Diagnosis
