Dementia and Sunlight Sensitivity
People with dementia often become more sensitive to bright light, including sunlight. This can make them uncomfortable or even distressed when exposed to sunny environments.
There are a few reasons why someone with dementia might dislike being in sunlight:
Visual changes: Dementia can affect how the brain processes visual information. Bright light may seem harsher or more intense to them, causing discomfort or even pain[1][9].
Increased glare sensitivity: Many older adults, especially those with dementia, become more sensitive to glare. Sunlight reflecting off surfaces can be overwhelming[9].
Disrupted sleep-wake cycles: Dementia often impacts circadian rhythms. Too much bright light exposure, especially later in the day, can further throw off their internal clock and sleep patterns[1].
Confusion and disorientation: Bright environments with lots of shadows or reflections may be visually confusing for someone with dementia, leading to anxiety or agitation[9].
Medication side effects: Some medications used to treat dementia symptoms can increase light sensitivity as a side effect[1].
To help your relative feel more comfortable:
– Use curtains or blinds to soften bright sunlight indoors
– Encourage them to wear sunglasses when outside
– Avoid midday outings when the sun is strongest
– Create shaded outdoor areas for them to enjoy
– Ensure good indoor lighting that isn’t too harsh
With some adjustments, you can help your loved one enjoy light exposure more comfortably. If light sensitivity persists or worsens, consult their doctor to rule out any eye health issues or medication effects.
