AIM:To investigate macular microperimetry in patients with early primary open angle glaucoma(POAG)using a new custom-made pattern,and analyze the characteristics of macular sensitivity.METHODS:This case-control study ...AIM:To investigate macular microperimetry in patients with early primary open angle glaucoma(POAG)using a new custom-made pattern,and analyze the characteristics of macular sensitivity.METHODS:This case-control study included 38 patients with POAG,who were divided into pre-perimetric glaucoma(18 eyes of 18 patients),early-stage(20 eyes of 20 patients),and control(20 eyes of 20 patients)groups.All subjects underwent standard 24-2 humphrey visual field test.An MP-3 microperimeter with a new custom-made pattern(28 testing points distributed in four quadrants,covering the central 10°of the retina)was used to evaluate macular sensitivity.Ganglion cell complex(GCC)thicknesses were examined using an RS-3000 Advance OCT system.The features of structure and function were analysed per quadrant.RESULTS:The pre-perimetric glaucoma group had significantly lower inferior hemifield macular sensitivity compared to controls(P<0.05).The early-stage POAG group had significantly lower average,inferior hemifield,inferonasal,and inferotemporal mean sensitivities compared to the pre-perimetric glaucoma group(P<0.05),and lower macular sensitivity in all sectors compared to controls(P<0.05).Regarding GCC thickness,all sectors in the early-stage POAG group became thinner compared to those in controls(P<0.05);whereas all sectors in the early-stage POAG group,except the superonasal quadrant,became thinner compared to those in the pre-perimetric glaucoma group(P<0.05).Macular sensitivity and GCC thickness were significantly associated in each sector.The inferotemporal quadrant had the highest correlation coefficients(0.840).The structure-function relationship for the inferonasal and inferotemporal sectors was stronger compared to the corresponding superior sectors.CONCLUSION:Microperimetry reveals variations in macular sensitivity in patients with early glaucoma earlier than conventional perimetry,particularly in pre-perimetric glaucoma cases in which it might be undetectable by conventional methods.The new custom-made pattern may improve the accuracy of microperimetry by enhancing point arrangement and reducing fatigue effects.Macular sensitivity measured by MP-3 with this pattern shows statistically significant structural and functional associations with the thicknesses of the GCC.展开更多
目的:利用两样本孟德尔随机化(MR)的研究方法探究肠道菌群(GM)与原发性开角型青光眼(POAG)的潜在因果关系。方法:利用英国布里斯托尔大学的GM的全基因组关联研究数据(GWAS)作为暴露和IEU Open GWAS数据库中POAG的GWAS数据作为结局,采用...目的:利用两样本孟德尔随机化(MR)的研究方法探究肠道菌群(GM)与原发性开角型青光眼(POAG)的潜在因果关系。方法:利用英国布里斯托尔大学的GM的全基因组关联研究数据(GWAS)作为暴露和IEU Open GWAS数据库中POAG的GWAS数据作为结局,采用逆方差加权(IVW)、MR Egger、加权中位数(WM)、Simple Mode、Weighted Mode方法分析POAG与GM之间存在的潜在关系,其中IVW为主要分析方法。敏感性分析检测该MR分析结果是否可靠。结果:IVW分析显示,Butyrivibrio(OR=1.170,95%CI:1.057-1.295,P=0.002)、Howardella(OR=1.188,95%CI:1.043-1.355,P=0.010)、LachnospiraceaeUCG001(OR=1.229,95%CI:1.016-1.485,P=0.033)增加了POAG的发病风险;而Candidatus Soleaferrea(OR=0.810,95%CI:0.670-0.981,P=0.031)、Ruminococcustorquesgroup(OR=0.656,95%CI:0.453-0.950,P=0.026)、Ruminococcaceae-UCG013(OR=0.770,95%CI:0.598-0.990,P=0.041)降低了POAG的发病风险。敏感性分析结果表明以上结果不存在异质性和多效性,分析结果具有可靠性。结论:GM与POAG存在潜在的因果关系,由于POAG具有致盲性,早期诊断和早期干预POAG的相关因素对该病的临床预后具有重要意义。展开更多
基金Hebei Medical Science Research Project Program(No.20230067).
文摘AIM:To investigate macular microperimetry in patients with early primary open angle glaucoma(POAG)using a new custom-made pattern,and analyze the characteristics of macular sensitivity.METHODS:This case-control study included 38 patients with POAG,who were divided into pre-perimetric glaucoma(18 eyes of 18 patients),early-stage(20 eyes of 20 patients),and control(20 eyes of 20 patients)groups.All subjects underwent standard 24-2 humphrey visual field test.An MP-3 microperimeter with a new custom-made pattern(28 testing points distributed in four quadrants,covering the central 10°of the retina)was used to evaluate macular sensitivity.Ganglion cell complex(GCC)thicknesses were examined using an RS-3000 Advance OCT system.The features of structure and function were analysed per quadrant.RESULTS:The pre-perimetric glaucoma group had significantly lower inferior hemifield macular sensitivity compared to controls(P<0.05).The early-stage POAG group had significantly lower average,inferior hemifield,inferonasal,and inferotemporal mean sensitivities compared to the pre-perimetric glaucoma group(P<0.05),and lower macular sensitivity in all sectors compared to controls(P<0.05).Regarding GCC thickness,all sectors in the early-stage POAG group became thinner compared to those in controls(P<0.05);whereas all sectors in the early-stage POAG group,except the superonasal quadrant,became thinner compared to those in the pre-perimetric glaucoma group(P<0.05).Macular sensitivity and GCC thickness were significantly associated in each sector.The inferotemporal quadrant had the highest correlation coefficients(0.840).The structure-function relationship for the inferonasal and inferotemporal sectors was stronger compared to the corresponding superior sectors.CONCLUSION:Microperimetry reveals variations in macular sensitivity in patients with early glaucoma earlier than conventional perimetry,particularly in pre-perimetric glaucoma cases in which it might be undetectable by conventional methods.The new custom-made pattern may improve the accuracy of microperimetry by enhancing point arrangement and reducing fatigue effects.Macular sensitivity measured by MP-3 with this pattern shows statistically significant structural and functional associations with the thicknesses of the GCC.
