Given the alternative, everyone should look forward to being old. With increasing age comes knowledge and, in some cases, wisdom. Unfortunately, knowledge and wisdom have companions in the form of physical and mental decline, ultimately leading to loss of independence, dementia and death. This chapter examines the changes that occur in the visual system and the circadian timing system with increasing age, the consequences of these changes and how lighting can be used to offset some of them so that the quality of life of the elderly may be sustained.