Holschbach B, Niepel G
Augenklinik der Medizinischen Fakultät, Rheinisch-Westfälischen Technischen Hochschule Aachen (RWTH Aachen), Universitäts-Klinikum.
Klin Monbl Augenheilkd. 2000 Mar;216(3):152-7. doi: 10.1055/s-2000-10536.
Routine measurement of dark adaptation is a lengthy process and the presence of a qualified operator is required.
Our dark adaptometer uses either a red or a green light-emitting diode to produce the threshold stimulus. Through an electronic circuit arrangement the dark adaptation curve is automatically measured. A computer stores the resulting data and renders the statistical analysis possible. To obtain the normal adaptation curve, 33 healthy volunteers were tested. We subsequently examined 32 patients in the clinical assay.
The adaptation for the green test light results in an overlapping photopic/scotopic graph and is used as an analogy for the curve resulting from a white test light. The red LED produces the scotopic graph later on with a more elevated threshold. Of the patients examined, 14 with night blindness show the expected pathological results. Correlating to the type of disease, the other 18 patients without night blindness show normal dark adaptation.
In 150 examinations the dark adaptometer proved to be easy to handle, yielding valid and reliable results. The automatic recording allows operator-independent measurements. The dark adaptation rate for red and green and the final cone and rod threshold can be evaluated. The computer control provides statistical analysis and the possibility to delegate the examination.
常规暗适应测量是一个漫长的过程，且需要有资质的操作人员。
我们的暗适应计使用红色或绿色发光二极管产生阈值刺激。通过电子电路装置自动测量暗适应曲线。计算机存储所得数据并进行统计分析。为获得正常适应曲线，对33名健康志愿者进行了测试。随后在临床检测中检查了32名患者。
绿色测试光的适应产生了一个重叠的明视/暗视图表，并被用作白色测试光产生的曲线的类比。红色发光二极管稍后产生暗视图表，阈值更高。在接受检查的患者中，14名患有夜盲症的患者呈现出预期的病理结果。与疾病类型相关，其他18名没有夜盲症的患者暗适应正常。
在150次检测中，暗适应计被证明易于操作，产生有效且可靠的结果。自动记录允许进行独立于操作人员的测量。可以评估红色和绿色的暗适应率以及最终的视锥和视杆阈值。计算机控制提供统计分析并使检查能够委托他人进行。
