Abstract
We measured and formulated age-related changes of crystalline lens, pupil, color appearance and contrast discrimination sensitivity for simulating aged-vision precisely to young observers. Age-related changes of human lens and pupillary size were simulated as transformations of effective luminance of each pixel. We measured color appearance in elderly and young subjects quantitatively using an elemental color-scaling method and formulated transformation functions for deriving equivalent colors between elderly and young observers to simulate color vision characteristics of old people. In addition, we conducted an experiment to measure contrast discrimination sensitivity in elderly and young subjects. From the results. we formulated transformation functions for deriving spatial characteristics between both ages.
