A member asked:

Does insomnia cause pupil dilation?

A doctor has provided 1 answer
Dr. Stephen Kibrick answered

Specializes in Clinical Psychology

Not usually: Dilated pupils can occur as a side effect of various medications and several illicit drugs. Serious medical conditions such as serotonin syndrome can also cause this. Insomnia for a night or two would not usually result in dilated pupils. How long have you had insomnia? Have you been depressed or started a new medication? See your doctor to be sure and bring a list of all drugs, herbals takin

Answered 5/1/2015

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