Dilated pupils and migraines. If you get migraines and notice that your pupils are very dilated, see a doctor right away. It's a sign of a serious or life-threatening condition.

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Dilated pupils that don't turn back to their regular size, however, are not normal. Having one or two pupils that stay dilated could be a sign of a serious medical concern, ...

Mydriasis refers to dilated pupils that do not change in response to changes in light levels. Some medications, recreational drugs, and injuries can cause this. The opposite, pinpoint pupils, is ...

Research into pupil dilation is ongoing. The pupils may dilate, or get bigger, in response to changes in light, hormone levels, or emotions. Learn more here.

The pupils dilate (widen) when illumination levels are low to let more light into the eye. When there is intense light, the pupils constrict (become smaller). Usually, ...

Medically reviewed by Christine L. Larsen, MD If you have your pupils dilated for an eye exam, they may stay dilated for several hours. Your eye health provider dilates your pupils so they can get ...

A study finds men’s pupils dilate strictly according to their sexual preferences, and women’s pupils dilate more variably His gaze softens as he draws closer to you. With one hand around your ...

Your pupils and the six 'fs' There are two different mechanisms to make the pupils dilate. The first is by direct sympathetic nervous system stimulation causing the pupil to dilate (enlarge).

The pupil is an opening in the iris. rtem/Shutterstock Your pupils and the six ‘fs’ There are two different mechanisms to make the pupils dilate. The first is by direct sympathetic nervous system ...