Accommodation was monitored by using a high-speed infrared optometer while subjects viewed a target that appeared to approach and recede in a sinusoidal manner. The target was presented under open-loop conditions to prevent blurring because of accommodation. The experiments suggest that changing target size can be an effective stimulus on its own. This supports the view that accommodation responds to both dioptric and nondioptric stimuli.
© 1985 Optical Society of America
Philip B. Kruger and Jordan Pola, "Changing target size is a stimulus for accommodation," J. Opt. Soc. Am. A 2, 1832-1835 (1985)