A member asked:

Can lexapro (escitalopram) cause aniscoria? i started this med 2 weeks ago and i woke up today with an enlarged left pupil, but responds normally to light. worried.

8 doctors weighed in across 4 answers

No: This is not a side effect of this particular medicine. Get an eye exam.

Answered 2/23/2016

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No, it does NOT: There can be many reasons for a focally enlarged pupil, some benign such as splashed eyedrops, an Adie's pupil, but others perhaps associated with neurological disorders. See an ophthalmologist, and start getting this evaluated.

Answered 5/8/2015

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Dr. Stuart Hickerson answered

Specializes in Family Medicine

Anisocoria: I have a reference that does not list anisocoria as a side effect. However, Lexapro (escitalopram) can cause tachycardia, sweating and other sympathetic symptoms. It is sympathetic tone that causes this. Any drops, visine etc. I would talk to your eye provider o.

Answered 9/20/2014

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Yes, although this: is a rare side effect. Here's a beginning reference, but if you did not have this condition prior to taking Lexapro, (escitalopram) then go to your MD right away. http://journals.lww.com/psychopharmacology/Citation/2015/08000/Anisocoria_Associated_With_Escitalopram.31.aspx

Answered 5/10/2016

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