Lawrence R Stark, Philip B Kruger, Frances J Rucker, William H Swanson, Nathan Schmidt, Caitlin Hardy, Hadassa Rutman, Theodore Borgovan, Sean Burke, Mustanser Badar, Raj Shah
The purpose of this study is to determine if cues within the blurred retinal image due to the Stiles-Crawford (SC) effect and the eye's monochromatic aberrations can drive accommodation with a small pupil (3 mm) that is typical of bright photopic conditions.The foveal, psychophysical SC function (17 min arc) and ocular monochromatic aberrations were measured in 21 visually normal adults. The retinal image of a 10.2 min arc disc was simulated for spherical defocus levels of -1 D, 0 D and +1 D in each of four conditions consisting of combinations of the presence or absence of the individual SC function and monochromatic aberrations with a 3 mm pupil...
November 2009: Journal of Modern Optics