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Dr. Stevens
Dr. Stevens, Ophthalmologist
Category: Eye
Satisfied Customers: 1404
Experience:  Board Certified Ophthalmologist
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What does it mean when I have one pupil larger than the ot

Resolved Question:

What does it mean when I have one pupil larger than the other?
Submitted: 8 years ago.
Category: Eye
Expert:  Dr. Stevens replied 8 years ago.
when was this noticed? How big is the difference? very noticeable by others? do the pupils react equally to light?
Customer: replied 8 years ago.


Hi , thanks for your quick response. I notice a significant difference in the a.m., 2-3mm. Nobody has told me about it. I just tried a flashlight in the mirror, they react the same, but my pupil of my right eye gets significantly larger. I take 12.5 mg. diuretic, Flonase, 30 mg. Lexapro, and 25 mg. Benadryl and have severe sleep apnea currently treated by my lovely bed companion C-PAP. Thanks, Stacey

Customer: replied 8 years ago.
Do u have a response to my question
Expert:  Dr. Stevens replied 8 years ago.


a pupil difference of 1mm can be normal, called physiologic anisocoria. 2-3mm difference in pupil needs to be evaluated by an eye doctor to determine the cause of the difference, Regards XXXXX

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