Pupils Different Sizes
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Reviewed By:
Ami Shah Vira, MD (Ophthalmology)
Dr. Shah Vira grew up in Arizona. She moved to Chicago to complete a combined engineering and medical program at the Illinois Institute of Technology (IIT) and Chicago Medical School. She completed a highly competitive two year dual fellowship in Neuro-ophthalmology and Oculoplastic at the highly regarded Ohio State University in Columbus, Ohio. Dr. Shah Vira specializes in surgical correction of the eyelids and eyebrows, eyelid malposition and tumors, excessive tearing, and conditions involving the orbit.
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.
Content updated on Apr 4, 2024
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The black of my eyes are of different sizes
Pupils look different to each other
Pupil size is different
Pupils asymmetrical
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Possible Causes
Generally, Pupils different sizes can be related to:
- Syphilis (Including Syphilitic Alopecia)
A sexually transmitted infection caused by the spirochetal bacteria T. pallidum. The disease has many stages, from lumps and ulcers in the groin to involvement of the heart, brain, and nerves.
- Diabetic Neuropathy
Diabetic neuropathy is a kind of nerve damage that can happen in people with long-term diabetes. High blood sugar can harm nerves all over the body, mainly in the legs and feet.
Related serious diseases
Sometimes, Pupils different sizes may be related to these serious diseases:
- Cerebral Hemorrhage
This is a life-threatening condition where bleeding occurs in the brain tissues or spaces. It is a type of stroke. Causes include high blood pressure, weakened blood vessels, bleeding from a tumor, and head trauma. Risk factors include hypertension, excessive alcohol consumption, and diabetes.
- Cerebellar Hemorrhage / Infarction
- Acute Epidural Blood
- Cerebral Infarction
- Chronic Subdural Hematoma
- Subarachnoid Hemorrhage
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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:
Ami Shah Vira, MD (Ophthalmology)
Dr. Shah Vira grew up in Arizona. She moved to Chicago to complete a combined engineering and medical program at the Illinois Institute of Technology (IIT) and Chicago Medical School. She completed a highly competitive two year dual fellowship in Neuro-ophthalmology and Oculoplastic at the highly regarded Ohio State University in Columbus, Ohio. Dr. Shah Vira specializes in surgical correction of the eyelids and eyebrows, eyelid malposition and tumors, excessive tearing, and conditions involving the orbit.
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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Dale Mueller, MD
Cardiothoracic Surgery, Vascular Surgery
Cardiothoracic and Vascular Surgery Associates
