Pupils Different Sizes

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Reviewed By:

Shohei Harase

Shohei Harase, MD (Neurology)

Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.

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Content updated on Jan 4, 2023

About the symptom

Unequal pupils is a condition in which the pupil of one eye differs in size from the pupil of the other eye.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Are your left and right pupils (the black part of your eyes) different in size?

Other Related Symptoms

Similar symptoms or complaints

References

  • Heath Jeffery RC, Young B, Swann PG, Lueck CJ. Unequal pupils: Understanding the eye's aperture. Aust J Gen Pract. 2019 Jan-Feb;48(1-2):39-42. doi: 10.31128/AJGP-07-18-4641. PMID: 31256448.

    https://www1.racgp.org.au/ajgp/2019/january%E2%80%93february/unequal-pupils

Reviewed By:

Shohei Harase

Shohei Harase, MD (Neurology)

Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.

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