Color and Pupil Function

VA Palo Alto Health Care System

Status: Completed

Conditions: Pupil

Treatments: Other: Light

Study type: Interventional

Funder types: Other U.S. Federal agency

Identifiers

NCT02636140

IRB-36326

Details and patient eligibility

About

This study will examine the effects of different colors of light on pupil function and alertness.

Enrollment: 10 patients

Sex: All

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Aged 18-35
• Good health

Exclusion criteria

• Sleep disorder
• Extreme chronotype
• Smoker
• Abnormal color vision
• Ocular pathology (other than mild or moderate refractive error)
• Visual field defects
• Alcohol abuse
• Use of illegal drugs

Trial design

Primary purpose: Basic Science

Allocation: N/A

Interventional model: Single Group Assignment

Masking: Double Blind

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10 participants in 1 patient group

Light

Experimental group

Description:

Randomized amount and color of light

Treatment:

Other: Light