Eye redness, Visual impairment: 17 Possible Causes
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What causes eye redness and visual impairment? 17 possible conditions

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

1

Conjunctivitis (Pink Eye)

Conjunctivitis, commonly known as "pink eye," is an infection or swelling in the outer membrane of your eyeball. Blood vessels in your conjunctiva, a thin membrane that lines part of your eye, become inflamed. Thi...

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2

Scleritis

Scleritis is inflammation of the outer surface of the eye. How scleritis will affect you often depends on which type you have.

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3

Uveitis

Uveitis is swelling of the middle layer of the eye, which provides blood to the retina. Read about causes, symptoms, and treatment.

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4

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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5

Corneal Abrasion

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

A minor scratch to the eye's cornea is called a corneal abrasion. It can be caused by dust, contact lenses, or other foreign objects, and can sometimes develop into a serious eye condition.

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6

Pterygium

A pterygium is a growth on the conjunctiva or mucous membrane that covers the white part of your eye. These growths usually don't require treatment.

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7

Hyphema

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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8

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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9

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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10

Glaucoma

Glaucoma is an eye condition that damages your optic nerve. Learn what causes it.

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11

Reactive Arthritis (Reiter's Syndrome)

Reactive arthritis is a type of arthritis triggered by an infection in the body.

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12

Sarcoidosis

Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.

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13

Allergic Conjunctivitis

Allergic conjunctivitis is an eye inflammation caused by an allergic reaction to substances like pollen. Your eyes may become red, itchy, and watery.

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14

Graves' Disease

Graves' disease is an autoimmune disorder that causes your thyroid gland to create too much thyroid hormone. Learn the symptoms and your treatment options.

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15

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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16

Eye Emergencies

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

If you have an injured eye or a foreign object in your eye, you'll likely need to seek medical attention right away. Here's what to look out for in eye emergencies.

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17

Absence of Gamma Globulin in Blood

Agammaglobulinemia is an inherited immune system disorder in which the body is unable to produce antibodies.

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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.
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