RecruitingNCT02628314
Reliability of Pupil Response to Acute Pain
Sponsor
Wake Forest University Health Sciences
Enrollment
80 participants
Start Date
Aug 4, 2015
Study Type
OBSERVATIONAL
Conditions
Summary
The purpose of this research study is to test whether researchers can reliably measure the response pupils have when an acute painful stimulus is experienced. Changes in the size of the pupil of the eye can be an indicator of brain activity in a region of the brain that is important for feeling pain.
Eligibility
Min Age: 18 YearsMax Age: 70 Years
Inclusion Criteria3
- Adult (18-70)
- Pain from hip or knee arthritis of moderate intensity
- American Society of Anesthesiologists physical status 1-3
Exclusion Criteria7
- Inability to complete study questionnaires
- Pregnancy
- Litigation or workers compensation related to hip or knee pain
- Taking > 50 mg morphine equivalents/day
- History of Raynaud's disease of the feet
- Psychotic disorder or a recent psychiatric hospitalization
- History of eye surgery or topical eye medications that would would directly affect pupil diameter
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Locations(1)
View Full Details on ClinicalTrials.gov
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NCT02628314
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