Kobrick J L, Witt C, Miletti J
Health & Performance Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA 01760.
Aviat Space Environ Med. 1987 Nov;58(11):1127-9.
This report describes a new testing system designed to assess night vision parameters of the military population in the field, and to quantify the effects of various environmental stress factors, such as extended exposure to high altitude, on the dark adaptation process. The instrument is based on an established procedure for dark adaptation measurement in which the subject continuously adjusts the threshold luminance of a recurrently flashing stimulus. The device described here represents a modernized version of the original technique, which features an automated testing procedure and provides for computerized data translation of the dark adaptation function. It also offers the advantages of rugged construction and field portability not available in clinical style instruments.
本报告描述了一种新的测试系统，该系统旨在评估野外军事人员的夜视参数，并量化各种环境应激因素（如长期暴露于高海拔）对暗适应过程的影响。该仪器基于一种既定的暗适应测量程序，在此程序中，受试者持续调整反复闪烁刺激的阈值亮度。这里描述的设备是原始技术的现代化版本，其特点是自动化测试程序，并提供暗适应功能的计算机化数据转换。它还具有坚固的结构和便于携带到野外的优点，这是临床型仪器所不具备的。
