Krakau C E, Lindberg S, Havelius U
University Eye Clinic, Malmö, Sweden.
Acta Ophthalmol Scand. 1998 Feb;76(1):125-7. doi: 10.1034/j.1600-0420.1998.760128.x.
The design of an automatic instrument for the estimation of subjective dark adaptation (minimum perceptible for light) by an uninterrupted chain of trials.
A light emitting diode is used as test light. The patient answers by pressing a button when light is perceived. The process is controlled by means of a lap top computer and traces the adaptation course step by step.
The instrument was tested by recording the course of dark adaptation (DA) in a clinical series of normals and of patients. The threshold sensitivity (after 25 min in darkness) showed very satisfying reproducibility.
The instrument described was found to be reliable and well suited for clinical routine as well as experimental work.
设计一种通过连续不间断的试验来估计主观暗适应（光的最小可感知度）的自动仪器。
使用发光二极管作为测试光源。患者在感觉到光时通过按按钮进行回答。该过程由笔记本电脑控制，并逐步追踪适应过程。
通过记录一组正常人和患者的临床暗适应过程对该仪器进行了测试。阈值敏感性（在黑暗中25分钟后）显示出非常令人满意的可重复性。
所描述的仪器被发现可靠，非常适合临床常规以及实验工作。
