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老年人黄斑色素光密度的估计:假晶状体眼受试者的重测变异性及光学模糊的影响

Estimation of macular pigment optical density in the elderly: test-retest variability and effect of optical blur in pseudophakic subjects.

作者信息

Gallaher Kevin T, Mura Marco, Todd Wm Andrew, Harris Tarsha L, Kenyon Emily, Harris Tamara, Johnson Karen C, Satterfield Suzanne, Kritchevsky Stephen B, Iannaccone Alessandro

机构信息

Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, 930 Madison Avenue, Suite 731, Memphis, TN 38163, USA.

出版信息

Vision Res. 2007 Apr;47(9):1253-9. doi: 10.1016/j.visres.2007.01.013. Epub 2007 Mar 21.

Abstract

The reproducibility of macular pigment optical density (MPOD) estimates in the elderly was assessed in 40 subjects (age: 79.1+/-3.5). Test-retest variability was good (Pearson's r coefficient: 0.734), with an average coefficient of variation (CV) of 18.4% and an intraclass correlation coefficient (ICC) of 0.96. The effect of optical blur on MPOD estimates was investigated in 22 elderly pseudophakic subjects (age: 79.9+/-3.6) by comparing the baseline MPOD, obtained with an optimal correction, with MPODs obtained with a +/-1.00-diopter optical blur. This optical blur did not cause differences in the MPOD estimates, its accuracy, or test duration.

摘要

对40名受试者(年龄:79.1±3.5岁)的老年人黄斑色素光密度(MPOD)估计值的可重复性进行了评估。重测变异性良好(皮尔逊r系数:0.734),平均变异系数(CV)为18.4%,组内相关系数(ICC)为0.96。通过比较最佳矫正下获得的基线MPOD与±1.00屈光度光学模糊下获得的MPOD,在22名老年人工晶状体植入受试者(年龄:79.9±3.6岁)中研究了光学模糊对MPOD估计值的影响。这种光学模糊在MPOD估计值、其准确性或测试持续时间方面未造成差异。

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