Lighting for Older Adults With Dementia

This study aims to investigate the effect of a dynamic lighting intervention on sleep quality, circadian activity rhythms, and mood in older adults with dementia living in long-term care facilities. The dynamic lighting intervention is designed to create an ambient illumination that provides a high level of circadian stimulation in the morning and circadian-neutral lighting in the evenings through delivering varying light intensity and spectrum.

Inclusion Criteria:Aged over 50.Diagnosed with mild to major dementia based on the physician and care facility manager's recommendation.Has no major organ failure, major diagnosis other than dementia, history of head injury, obstructing cataracts, macular degeneration, and blindness based on their Medical history.Not taking light therapyFemale or maleNo current or planned use of light-altering devices (e.g., blue-blocking and/or tinted glasses and contact lenses)Inclusion Criteria:-