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-  2015 

频域光学相干断层扫描检测青光眼黄斑区节细胞复合体厚度的临床研究 Quantitative Measurement of Macular Ganglion Cell Complex Thickness of Glaucoma by Spectral Domain Optical Coherence Tomography

Keywords: 黄斑区节细胞复合体,青光眼,频域光学相干断层扫描

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Abstract:

目的:探讨黄斑区神经节细胞复合体(GCC)厚度在正常眼压性青光眼(NTG)与原发性开角型青光眼(POAG)人群中的分布特征。方法:采用频域光学相干断层扫描(SD-OCT)对NTG患者81例81眼、POAG患者125例125眼及年龄、性别、屈光度相匹配的正常对照者56例56眼黄斑区视网膜、视盘进行扫描,分析计算出黄斑区整体上方GCC厚度(GCC-Sup)、下方GCC厚度(GCC-Inf)、平均GCC厚度(GCC-Avg)、视盘旁上方视网膜神经纤维层厚度(RNFL-Sup)、下方RNFL厚度(RNFL-Inf)及平均RNFL厚度(RNFL-Avg),Zeiss Humphrey 750型视野计检测各组中心30°视野平均缺损(MD)值,比较3组患者GCC、RNFL及MD参数的差异,并分析GCC厚度值、RNFL厚度值与MD值的相关性。结果:POAG组及NTG组的GCC-Avg、GCC-Sup、GCC-Inf、RNFL-Avg、RNFL-Sup、RNFL-Inf值及视野MD值均低于正常对照组,差异有统计学意义(P<0.05)。所有研究对象GCC-Sup、GCC-Inf、GCC-Avg值与对应区域RNFL厚度值均呈显著正相关(r=0.675、0.669、0.698,P<0.01)。RNFL-Avg值与视野MD值呈显著正相关(r=0.741,P<0.01),GCC-Avg与视野MD值亦呈显著正相关(r=0.613,P<0.01)。结论:频域OCT能定量检测黄斑区GCC厚度,并与RNFL和视野损害有较好的相关性,可为青光眼的诊治提供重要依据

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