Skip to main content
. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Vision Res. 2010 Oct 23;51(13):1610–1622. doi: 10.1016/j.visres.2010.10.020

Figure 1.

Figure 1

Adapted from Burton et al. (1993). Comparison of older adults’ loss in photopic spatial contrast sensitivity using interference fringes (labeled “Neural” Contrast Sensivity) and older adults’ vision loss in a direct viewing spatial contrast sensitivity task from Owsley et al. (1983) where the optics were not bypassed (“Neural + Optical” Contrast Sensitivity). The contrast sensitivity loss for interference fringes accounts for less than half of the contrast sensitivity loss at higher spatial frequencies in the direct view task. This suggests that older adults’ spatial contrast sensitivity loss under photopic conditions is largely optical in origin.