Recruiting
Phase 1

Cognitive Function

Sponsor:

Michigan State University

Code:

NCT06325150

Conditions

Healthy

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Interventions

Light emitting glasses

Study Details

Brief summary:

Humans are constantly exposed to a variety of light types, created naturally or through artificial means. Light exposure captured by the eyes impacts many physiological functions in humans, including but not limited to cognitive output, fatigue levels, and mood regulation. The level of impact on cognitive learning from different types of light on undergraduate adult students remains unclear.

Conditions

Healthy

Study ID

NCT06325150

Start date

Sep 15, 2026

Status verified date

Sep, 2026

Completion date

Feb 1, 2028

Anticipated

Primary completion date

Sep 1, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

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

Study Design

Enrollment

300 participants

Anticipated

Allocation

Randomized

Intervention Model

Crossover

Primary purpose

Basic Science

Interventions and Outcome Measures

Arms

experimental: Light glasses type 1

Experimental light emitting glasses.

placebo comparator: Light glasses type 2

Placebo light emitting glasses

no intervention: No glasses control

No glasses control group

Interventions

Light emitting glasses

Assess the capacity of 20 min use of AYO light emitting glasses on different outcomes

Primary outcome measure

  • Assessment of attention [ Time Frame: 3 weeks. One test per week ]

Central Contacts and Locations

Central contacts

Hanne M Hoffmann, PhD

517 353 1415hanne@msu.edu

Locations

Michigan State University

Recruiting

East Lansing, Michigan, United States, 48824

Contacts

Hanne M Hoffmann, PhD

517-353-1415hanne@msu.edu

More Information

Sponsor

Michigan State University

Last update posted

Sep 17, 2026

Last verified

Sep, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-18. This information was provided to ClinicalTrials.gov by Michigan State University on 2026-09-17.