Light to Maximize Vision, Minimize Insomnia

November 1, 2016 updated by: Jamie M. Zeitzer, Ph.D., VA Palo Alto Health Care System

Toileting at Night in Older Adults: Light to Maximize Vision, Minimize Insomnia

The purpose of this study is to determine whether specific wavelengths of light at night can be used to improve mobile balance while simultaneously not increasing alertness.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

29

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Palo Alto, California, United States, 94304
        • VA Palo Alto Health Care System

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

55 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Aged 55-85
  • At least 20/200 corrected visual acuity
  • Greater than 20° visual field with no lower visual field loss
  • Stable health
  • Male or female
  • Normal color vision
  • Normal hearing

Exclusion Criteria:

  • Extreme chronotype
  • Sleep disorders
  • Dementia
  • Smoker
  • Depression
  • Alcohol abuse
  • Use of illegal drugs
  • Use of sleep/wake altering drugs on an acute or as needed basis (including nutraceuticals, antihistamines)
  • Use of light sensitizing drugs
  • Self-reported history of nocturia (>3 times per night)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Dim light
15 minutes of very dim (<1 lux) light during the night
Other: Light
Active Comparator: Room light
15 minutes of normal room light (~100 lux) during the night
Other: Light
Experimental: Colored light
15 minutes of colored light during the night
Other: Light

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mobile balance
Time Frame: 15 minutes
Mobile balance as determined using a GaitRite walkway
15 minutes
Alertness
Time Frame: 15 minutes
Alertness as determined by electroencephalographic power density
15 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

VA Palo Alto Health Care System

Collaborators

Stanford University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2013

Primary Completion (Actual)

September 1, 2016

Study Completion (Actual)

September 1, 2016

Study Registration Dates

First Submitted

October 19, 2012

First Submitted That Met QC Criteria

October 19, 2012

First Posted (Estimate)

October 23, 2012

Study Record Updates

Last Update Posted (Estimate)

November 2, 2016

Last Update Submitted That Met QC Criteria

November 1, 2016

Last Verified

November 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1I21RX000773-01A2 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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