Gallagher J T, Citek K
State College of Optometry, State University of New York, New York, USA.
Optom Vis Sci. 1995 Apr;72(4):276-8. doi: 10.1097/00006324-199504000-00009.
The Canon AutoRef R-1 optometer is currently in use by several investigators in studies of accommodative response and open loop accommodation. It has the capability for frequent (1.4 s cycle time in "single shot" mode) objective measures of the refractive state of the eye and, because it uses near infrared radiation, it provides no stimulus to accommodation. In this paper we describe a compact device which can be mounted on the R-1 optometer, coaxial with the measurement optics of the optometer, to provide controlled optical vergence, i.e., accommodative stimulus, from +10.0 to -20.0 D while maintaining a constant visual angle.
佳能自动验光仪R-1目前正被几位研究人员用于调节反应和开环调节的研究中。它能够频繁（在“单次拍摄”模式下周期时间为1.4秒）对眼睛的屈光状态进行客观测量，并且由于它使用近红外辐射，所以不会对调节产生刺激。在本文中，我们描述了一种紧凑的装置，它可以安装在R-1验光仪上，与验光仪的测量光学系统同轴，以在保持恒定视角的同时提供从+10.0到-20.0 D的可控光学聚散度，即调节刺激。
