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Color and Pupil Function

Not Applicable
Completed
Conditions
Pupil
Registration Number
NCT02636140
Lead Sponsor
VA Palo Alto Health Care System
Brief Summary

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

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
10
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

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Primary Outcome Measures
NameTimeMethod
Change in pupil sizeBaseline and 10 minutes

Change in pupil size from baseline during and following brief light exposure

Secondary Outcome Measures
NameTimeMethod

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