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A 26-year-old female asked about a 49-year-old female:

right pupil is bigger than the left pupil. irritating pain on the right side of head. what can be causing this?

2 doctor answers • 2 doctors weighed in
Dr. Walter Husar
Dr. Walter Husar answered
Neurology 33 years experience
Depends: Can be many things. Pupil asymmetry is normal up to 1 mm difference. If the headache does not improve or other symptoms develop, you need to see your doctor fast.
4290 viewsAnswered >2 years ago
Thank
Dr. Darrell Herrington
Dr. Darrell Herrington answered
Family Medicine 34 years experience
Cluster headache: See your doctor for evaluation and treatment. There could be more serious underlying causes, so seek medical care asap.
4290 viewsAnswered >2 years ago
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Last updated Sep 28, 2016

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