原发性开角型青光眼视盘形态变化分析33例

摘要

AIM: To show frequency of progression and progres-sion at the optic disc in primary open angle glaucoma (POAG).METHODS: A total of 33 patients (66 eyes), 14 male and 19 female, aged 14 to 79 with POAG were imaged using the Heidelberg Retina Tomography II (HRT II) three or more times during follow-up periods of 6 years (2000-2006). Disc progression was determined by regression analysis of global and segmental changes in optic disc parameters. Every patient was tested by Octopus G1 once a year. Imaged optic disc parameters with scanning laser tomography were: rim area (ra), cup/disc (C/D), rim volume (rv), mean RNFL thickness (mRNFL). Imaged segments of the optic disc were: global (G), temporal (T), temporal superior (TS), temporal inferior (TI), nasal (N), nasal superior (NS) and nasal inferior (NI).RESULTS: Global frequency of progression according to c/d ratio existed in 34 eyes (51%), but 32 eyes (48%) were without frequency of progression. Progression existed in 12 eyes (18%) in temporal, 7 eyes (10.6%) in temporal superior (TS), 14 eyes (21%) in temporal inferior (TI), 8 eyes (12%) in nasal (N), 7 eyes (10.6%) in nasal superior (NS), and 13 eyes (20%) in nasal inferior (NI) segment. Without progression were 5 eyes (8%).CONCLUSION: Disc progression in our study was mostly in nasal (N) and temporal inferior (TI) segments. Most frequently were stricken temporal inferior (TI) and nasal inferior (NI), but most infrequently nasal superior (NS) segment. Most sensitive parameter was c/d ratio. Segmental scanning is of importance in POAG progression analysis.%目的:分析原发性开角型青光眼(POAG)视盘损害的进展和进展频率.方法:33例(66眼) POAG患者,男14例,女19例,年龄14~ 79岁,在随访的6a间(2000/2006),3次或更多次进行海德堡视网膜断层扫描仪II(HRT II)检查.对整体和节段的视盘参数进行回归分析判断视盘损害的进展.患者每年进行Octopus G1计算机视野分析检查一次.激光扫描视盘图像参数包括:盘沿面积(ra),杯盘比(C/D),盘沿体积(rv),平均视神经纤维层厚度(mRNFL).扫描视神经的节段包括总体(G), 颞侧(T), 颞上(TS), 颞下(TI), 鼻侧(N), 鼻上方(NS) 和鼻下(NI).结果:根据杯盘比C/D,总体上有34眼(51%)视盘损害进展,32 眼(48%)没有进展.12眼(18%)颞侧(T),7眼(10.6%)颞上,14 眼(21%)颞下,8 眼(12%)鼻侧,7 眼(10,6%)鼻上,13眼(20%)鼻下,视盘损害进展.5 眼(8%)没有进展. 结论:在鼻侧(N)及颞下方(TI)视盘损害进展最多,进展频率最高在颞下方(TI)和鼻下方(NI),频率最低在鼻上方(NI).杯盘比C/D最敏感.节段扫描对POAG进展分析有重要意义.