Lighting effects on radiographers in hospitals

This study tests whether changing the light in a hospital room can improve sleep and help your body clock work better in older adults. It may be most helpful if sleep problems or irregular daily rhythms are affecting you in the hospital.

This study uses a light-based test (the “photomotor reflex”) to see how non-visual effects of light may affect sleep-wake timing, brain function, mental health, and eyesight. You may be assigned to a group based on your condition, or you may be in the healthy control group.

This study looks at how sleep, light exposure, and your body's internal clock affect oxidative stress (a type of cell wear and tear). It may help researchers understand what keeps our cells healthy.

This trial studies whether timed light exposure can help people who have trouble falling asleep. It aims to improve insomnia symptoms by testing a light-based approach while carefully measuring sleep patterns.

This study tests how different colored lights affect people’s responses and comfort. It does this by comparing your experience under colored lighting conditions in a controlled setting.

This study looks at how your eyes react to light and how that relates to your sleep and daily body rhythms. It may help researchers understand sleep problems and find better ways to treat them.