Research study: Light at night and pupil size in children and adolescents

The CU Boulder Sleep and Development Lab is looking for participants for a research study to learn about how light exposure in the evening affects pupil size in children and adolescents. We need children ages 8-9.9 or 15-16.9 years who are healthy and have no sleep problems for a 6-day study, requiring one short visit to our lab (approximately 2 hours). Families will be compensated for participating.

For more information, contact the Sleep and Development Laboratory at or visit our website.