机构地区:[1]西北民族大学第二临床医学院甘肃省第二人民医院,兰州730000 [2]甘南藏族自治州人民医院眼科,合作747000
出 处:《中国实用眼科杂志》2017年第3期267-272,共6页Chinese Journal of Practical Ophthalmology
基 金:西北民族大学中央高校基本科研业务费项目(31920150060);甘肃省自然科学基金项目(145RJZA127);甘肃省卫生行业科研计划项目(GSWSKY-2015-16)
摘 要:目的 观察高原藏族居民非增生性糖尿病视网膜病变中心视网膜厚度对黄斑功能的影响。方法 临床病例对照研究。在2015年1月至2016年6月间选择高原藏族居民(高海拔群)及中低海拔居民(低海拔群)非增生性糖尿病视网膜病变的患者各90例(180只眼),排除中心视网膜有明显的出血、渗出及其它眼底病变。依据OCT测量的中心视网膜厚度,将不同海拔两组再分为中心视网膜厚度正常组及异常组各45例(90只眼),观察各组黄斑区功能相关指标包括:F-ERG中暗适应视杆及视锥细胞的混合反应、视锥细胞反应、30 Hs闪烁光反应及VEP指标。结果 中心视网膜正常厚度为(276.4~304.9)μm。高海拔群中心视网膜厚度异常组与正常组比较Max-Ra波、b波幅值、Cone-Ra波、b波幅值、30 Hs闪烁光反应P1波幅值均明显降低(F=3.716、6.524、3.825、4.59、7.52,P=0.03、0.00、0.03、0.04、0.00),PVEP的P100潜伏期明显延长(F=9.35,P=0.00),波幅明显降低(F=7.15,P=0.00)。低海拔群中心视网膜厚度异常组与正常组比较Max-Ra波、b波幅值、Cone-Ra波、b波幅值、30 Hs闪烁光反应P1波幅值均明显降低(F=3.56、5.42、4.25、5.12、6.52,P=0.03、0.02、0.03、0.02、0.00);PVEP的P100潜伏期无明显变化(F=2.19,P=0.10),P100波幅明显降低(F=9.85,P=0.00)。中心视网膜厚度正常组高海拔群与低海拔群FERG比较Max-Ra波幅值无明显变化(F=1.796,P=0.08),Max-Rb波幅值(F=3.114,P=0.03)、Cone-Ra波幅值(F=3.758,P=0.04)及Cone-Rb波幅值(F=3.714,P=0.03)均明显降低,30 Hs闪烁光反应P1波幅值降低(F=3.718,P=0.03);PVEP的P100潜伏期变化不明显(F=2.11,P=0.10),P100波幅明显降低(F=10.15,P=0.00)。中心视网膜厚度异常组高海拔群与低海拔群FERG比较Max-R,a波幅值变化不明显(F=2.792,P=0.06),Max-Rb波幅值(F=6.485,P=0.00)、Cone-Ra波幅Objective To observe the effects of central retinal thickness of function among high altitude Tibetan residents with non-proliferative diabetic retinopathy.Methods Ninety cases (180 eyes) of both Tibetan plateau residents (high altitude group) and Han Chinese residents in low altitude (low altitude group) with non-proliferative diabetic retinopathy patients were selected from January 2015 to June 2016, excluding the central retina significant bleeding, oozing and significant other retinopathy. Based on the thickness of central retinal by optical coherence tomography (OCT, cirrus400 Zeiss) examination (center 1mm, 1-3mm, 3-6mm straight by range), patients from different altitudes were re-divided into two groups of normal central retinal thickness group and abnormal group with 45 patients (90) of each group. Function of central retinal thickness of the patients were observed including ERG data, angiography data, f-ERG in dark-adapted rod, the mixed reaction cones, cone response, flashing light 30Hs reaction, VEP indicators and correlation between these were observed and analyzed.Results Central retinal thickness of the normal central retinal average thickness of 276.4-304.9 um; high altitude group central retinal thickness of normal and abnormal group Max-R (dark-adapted rod maximal response and the mixed reaction cones) a amplitudes, Max-R b amplitudes, cone-R (cone response) a wave amplitude, cone-R b amplitudes, 30Hs blinking light reaction P1 wave amplitude decreased (F=3.716, 6.524, 3.825, 4.59, 7.52, P=0.03, 0.00, 0.03, 0.04, 0.00); PVEP of P100 latency (F=9.35, P=0.00), P100 amplitude was significantly lower (F=7.15, P=0.00); low altitude population centers retinal thickness normal and abnormal group Max-R (dark adaptation reaction was mixed reaction largest rod and cone cells) a amplitude value, Max-R b amplitudes, cone-R (cone response) a amplitudes, Cone-R b amplitudes, 30Hs blinking light reaction P1 wave amplitude decreased (F=3.56, 5.42, 4.25, 5.12,
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