A member asked:

How long can pupil dilatation lasts in patients who have used the atropine eye drops?

11 doctors weighed in across 2 answers

See below: Dilating eye drops used for examination of the eye can last from 4 to 24 hours.

Answered 9/22/2019

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Up to 2 weeks: Atropine can cause pupillary dilation for up to 2 weeks. Eye drops typically used during examination have a shorter duration of effect lasting for a few to several hours depending on the exact drug and concentration used and individual responses to the drug

Answered 6/24/2014

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