By copying each other's non-verbal behavior, we gain access to what others think and feel. In psychology, this is known as ...

We spoke with Nik Hopkins M.D., an ophthalmologist at UAB Callahan Eye, about what patients can expect during an eye exam and why regular exams are essential for protecting your vision. Vision ...

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 ...

To begin understanding glaucoma, you must first know a few basic facts about the eye and how it works. With this knowledge, you will be better prepared to discuss your condition and treatment with ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

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 ...

The pupil responds to light, which is essential for our vision and how we see our surroundings. Three known mechanisms change the pupil’s size: the amount of light, focus distance, and cognitive ...

Researchers at Karolinska Institutet found that breathing affects pupil size, with pupils being smallest during inhalation and largest during exhalation. This discovery, which suggests a ...

RESEARCHERS have discovered a fundamental mechanism that affects the size of the pupil, namely our breathing. The study shows that the pupil is smallest during inhalation and largest during exhalation ...