Clinical Research Directory

Inclusion criteria for wearing light glasses: * Current Michigan State University (MSU) Undergraduate Student * Are 18 years or older * Healthy subject without light sensitivity * Average bedtime 9:30 pm - 2:00 am, 6 out of 7 days a week * Willingness to measure and report fatigue levels * Willingness to participate in cognitive testing * Willingness to wear light-enriched glasses in the classroom Inclusion criteria for the control group (will not wear light glasses): * Current Michigan State University (MSU) Undergraduate Student * Are 18 years or older * Average bedtime 9:30 pm - 2:00 am, 6 out of 7 days a week * Willingness to measure and report fatigue levels * Willingness to participate in cognitive testing Inclusion criteria for the control group (will not wear light glasses): * Current Michigan State University (MSU) Undergraduate Student * Are 18 years or older * Average bedtime 9:30 pm - 2:00 am, 6 out of 7 days a week * Willingness to measure and report fatigue levels * Willingness to participate in cognitive testing Exclusion criteria for wearing light glasses: * Are younger than 18 years of age * Participation in shift work (evening/night shifts, early morning shifts, rotating shifts, etc.) * Pregnant women * Previous diagnosis of diabetes * Use of medication that would cause sensitivity to light (e.g., antidepressants, antibiotics,prescribed sleep medication, prescribed pain meds) * Epilepsy or a history of seizures * Photophobia - sensitivity or eye discomfort to bright light * Eye Diseases that limit the ability of light to be processed (e.g., untreated cataracts,severe glaucoma, macular degeneration, blindness, pupil dilation problems, or retinadamage) * Previous eye surgery * Previous head injuries (e.g., concussions) * Current chronic, severe headaches/migraines * Clinical insomniacs or those with diagnosed sleep disorders