About the Study

The investigators are testing a Light-emiting Diode (LED) flashlight from First-Light™ USA called the Tomahawk MC Tactical Light to determine the range of colors people are able to see with these flashlights at night.

Inclusion Criteria

  • Normal vision: 18-65 years:

Exclusion Criteria

  • Blindness: Colorblind: Pregnant women: Prisoners: Decisionally challenged:

Study Team

Team Member

Study Coordinator
Team Member

Study Coordinator
Team Member

Principal Investigator

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Places where you can participate

Location Status
Toledo Clinic Cancer Centers-Maumee
5805 Monclova Rd,, OH
USA 		Enrolling Connect to Clinical Site
Upper Delaware Valley Cancer Center
113 Pocono Dr,, PA
USA 		Enrolling Connect to Clinical Site
Wilford Hall USAF Medical Center
1100 Wilford Hall Loop,, TX
USA 		Approved Connect to Clinical Site
St. Francis Hospital
355 Ridge Ave,, IL
USA 		Planned Connect to Clinical Site