 |
Assessment of visual performance in relation to macular pigment density in human vision |
PURPOSE: Macular pigment (MP) is found in diurnal primate specieswhen vision spans a large range of ambient illumination and is mediated by cone and rod photoreceptors. Rods exhibit large spatial summation generating more sluggish responses. Rod and cone signals combine in the mesopic range and this can contribute to reduced contrast acuity and poor spatial/temporal resolution.