暗适应计的校准误差。

Calibration error in dark adaptometer.

作者信息

Maggiano J M, Fishman G A, Evans L S, Sieving P, Goldbaum M

出版信息

Arch Ophthalmol. 1978 Jun;96(6):1082-3. doi: 10.1001/archopht.1978.03910050602024.

DOI:10.1001/archopht.1978.03910050602024

Abstract

We noted that the adjustable fixation device present on some models of the Goldmann-Weekers dark adaptometer has a calibration error that results in a consistent and predictable overestimation of retinal eccentricity. The error occurs because the eye being tested is not in the geometric center of the projection sphere. The true retinal locus may be computed by trigonometric analysis. A conversion table is available for reference.

摘要

我们注意到，戈德曼-韦克斯暗适应计某些型号上配备的可调固定装置存在校准误差，导致对视网膜偏心度的估计始终且可预测地偏高。出现该误差是因为被测试的眼睛不在投影球的几何中心。真实的视网膜位置可通过三角分析计算得出。有一个换算表可供参考。