For over a century, scientists believed that light, focus distance, and cognitive effort were the main forces behind changes in pupil size. But a new discovery adds breathing to that list. Researchers ...
Mild exercise like yoga improves mood and executive function, but the neural mechanisms were unclear. Using pupillometry, researchers found that pupil size changes during very light exercise predict ...
IRVINE, Calif.--(BUSINESS WIRE)--A new peer-reviewed study shows that even one occurrence of an abnormal Neurological Pupil index™ (NPi®) differential, measured by NeurOptics’ NPi Pupillometer, can be ...
Researchers at Karolinska Institutet in Sweden have discovered a fundamental mechanism that affects the size of the pupil, namely our breathing. The study, published in The Journal of Physiology, ...
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Iris: Anatomy, function, and associated conditions
Medically reviewed by Michael Menna, DO Key Takeaways The iris is the colored part of the eye that helps control how much ...
Please provide your email address to receive an email when new articles are posted on . In patients with ptosis, a large pupil may be indicative of third nerve palsy. Levator function measurement can ...
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