Blurred vision | Symptom Checker
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What causes blurred vision? 84 possible conditions

See a list of possible causes in order from the most common to the least.


Carotid Stenosis

Carotid stenosis is a narrowing or blockage of the carotid arteries, which carry blood to your brain. If blood flow to your brain is interrupted, a stroke occurs.

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Corneal Ulcer

A corneal ulcer is an open sore that forms on the cornea. It's usually caused by an infection. Even small injuries to the eye can lead to infections.

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There are many symptoms of HIV/AIDS, including persistent skin rashes, night sweats, and mouth sores.

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Juvenile Rheumatoid Arthritis

Juvenile rheumatoid arthritis is the most common type of arthritis in children. Learn about juvenile rheumatoid arthritis symptoms, diagnosis, and treatment.

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Lyme Disease

Lyme disease is an infectious condition transmitted via tick bite. A "bull's eye" rash at the site of the bite is an early symptom of this disease.

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Snake Bites

This condition is considered a medical emergency. Urgent care may be required.

A bite from a venomous snake should always be treated as a medical emergency. Even a bite from a harmless snake can lead to an allergic reaction or infection.

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A hyphema is a collection of blood in the eye, between the cornea and the iris. It is painful, and requires immediate medical attention.

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Polycythemia Vera

Polycythemia vera (PV) is a bone marrow disorder in which the body produces an excessive amount of red blood cells. Red blood cells are responsible for carrying oxygen to all parts of the body. Blood is carrie...

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Wernicke-Korsakoff Syndrome

Wernicke-Korsakoff syndrome is a brain disorder caused by a lack of vitamin B-1. The syndrome is two separate conditions that can occur at the same time.

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Neurofibromatosis 2 (NF2)

Neurofibromatosis 2 (NF2) is a disorder that causes tumors to form on nerves in the brain and spinal cord. Learn about symptoms, diagnosis, and treatment.

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Eyelid Turned In (Entropion)

Entropion is when your eyelid rotates inward. Your eyelashes rub against your eye and cause redness, irritation, and abrasions on the cornea of your eye.

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Pituitary Cancer

The pituitary gland is a very small gland of major importance to the functioning of the human body. It is located directly behind the eyes and below the front of the brain. It is about the size of a pea. Despite it...

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Hyperparathyroidism is a condition where the parathyroid glands produce too much parathyroid hormone (PTH).

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Renal Cell Cancer

Renal cell carcinoma is the most common kind of kidney cancer found in adults. Often aggressive, it occurs when cancer cells grow uncontrollably in the lining of the tubules of the kidney, causing many possible symptoms.

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Creutzfeldt-Jakob Disease and Mad Cow Disease

Creutzfeldt-Jakob disease is an infectious disease that causes the brain to degenerate. Learn about causes, symptoms, and its connection to "mad cow disease."

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Tay-Sachs Disease

Tay-Sachs disease is a neurodegenerative disorder most commonly found in infants. Learn more about this rare disease.

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Reye's Syndrome

Reye's syndrome is a rare condition that strikes without warning. It most often affects children ages 4 to 12 who are recovering from a viral infection.

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Pseudotumor Cerebri

Pseudotumor cerebri is a condition in which the pressure around your brain increases, causing headaches and vision problems. The name means "false brain tumor."

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Brain Cancer

Brain cancer is rare. Learn more about the different types of brain cancer and its symptoms.

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Closed-Angle Glaucoma

Closed-angle glaucoma is an eye condition caused by too much pressure inside your eye. Learn about the types and symptoms of closed-angle glaucoma.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.