A member asked:

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

2 doctors weighed in across 2 answers

Dr. Walter Husar answered

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.

Answered 11/8/2015

4.3k views

Thank

Dr. Darrell Herrington answered

Specializes in Family Medicine

Cluster headache: See your doctor for evaluation and treatment. There could be more serious underlying causes, so seek medical care asap.

Answered 9/28/2016

4.3k views

Thank

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A member asked:

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

2 doctors weighed in across 2 answers

Dr. Walter Husar answered

Dr. Darrell Herrington answered

Related Questions

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Left side of head numbness left pupil bigger than right one left ear can't hear as good as right one eyes blurry trouble with memory neck pain ?

A member asked:

In dim light one pupil does get quite as big as the other unless it's really dark then they look the same.in daylight they are the same, responds normally to light. Had full eye exam all normal. Dr didn't see it but said 25%of people have this?cause?

A member asked:

Hi.My pupils are uneven often.Difference is cca 1mm&less.Condition comes and goes frequently.I have astigmatism & myopia-right eye with bigger pupil has -3 dioptrie (left is -2.5).I take SNRI meds(effexor).Can one of these issues cause uneven pupils?

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