Greene H A, Pekar J, Brilliant R, Freeman P B, Lewis H T, Siwoff R, Paton C, Madden D J, Westlund R
J Am Optom Assoc. 1991 Jan;62(1):19-26.
An NIH-sponsored user and prescriber preference trial was conducted comparing a new low vision telescope system, the Ocutech Vision Enhancing System (VES) to two conventional Keplarian spectacle telescope systems in a controlled cross-over clinical study performed at four independent low vision clinics. Fifty-five visually impaired individuals, 18-81 years of age, with both previous and no telescope experience, were followed for 8-16 weeks. The experimental and control devices were compared on a series of subject-selected visual tasks using a standardized clinical protocol. Subjects were trained in the use of the systems with standardized clinical methods. The data shows a statistically significant preference of the new design by both patient and clinician with the overriding factors relating to appearance, weight, adjustability and the fit of the frame.
在由美国国立卫生研究院赞助的一项用户和开处方者偏好试验中，在四家独立的低视力诊所进行了一项对照交叉临床研究，将一种新型低视力望远镜系统——奥库泰克视觉增强系统（VES）与两种传统的开普勒眼镜式望远镜系统进行比较。55名年龄在18至81岁之间、有或没有使用望远镜经验的视力受损个体接受了8至16周的跟踪。使用标准化临床方案，在一系列受试者选择的视觉任务上对实验设备和对照设备进行比较。采用标准化临床方法对受试者进行系统使用培训。数据显示，患者和临床医生对新设计均有统计学上的显著偏好，主要因素涉及外观、重量、可调节性和镜框贴合度。
