Eye-Opening study: pupil size may reveal pain levels
NCT ID NCT02628314
First seen May 01, 2026 · Last updated May 15, 2026 · Updated 3 times
Summary
This study tested whether changes in pupil size can reliably measure acute pain. Researchers gave short, painful heat pulses to 20 adults with hip or knee arthritis and measured how their pupils reacted. The goal was to see if pupil response could be a trustworthy, objective pain signal.
Disclaimer
Read more
Show less
This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for PAIN are added.
By submitting, you agree to our Terms of use
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
By submitting, you agree to our Terms of use
Locations
-
Wake Forest Baptist Medical Center
Winston-Salem, North Carolina, 27157, United States
Conditions
Explore the condition pages connected to this study.