The eye’s ability to focus changes with age. Many individuals have significant vision impairments such as cataracts, macular degeneration, diabetic retinopathy and glaucoma. The ability of the pupil muscles to fully dilate or quickly constrict degenerates. Pupil Dilation – Why do so many older people use their smart phone flashlights at restaurants to read a menu? A person age 60 needs three times more illumination than a person age 20. Pupil Constriction – Many older persons have difficulty with oncoming headlights or bright glares from high gloss countertops.
Aspects of the home should cater to these needs. Color contrast helps people see changing floor differences. Dull finishes help diminish glare on surfaces. Brighter light allows people to navigate areas more easily.