An ophthalmic lens, comprising an optic including at least one
photochromic region having a first chromaticity and a second region of
lesser photochromaticity. A method of treating a subject having
presbyopia or aniridia comprising applying to the subject's eye an
ophthalmic lens comprising an optic including at least one photochromic
region having a first chromaticity and a second region of lesser
photochromaticity.