Visual Disturbances | Definition and Patient Education
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What causes visual disturbance? 84 possible conditions

Visual disturbances interfere with normal sight. The various types of visual disturbances may be caused by several conditions and disorders. Some are temporary and can be relieved with treatment. However, some can be permanent. Types of Visual Disturbances... Read more

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


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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A cataract is a dense, cloudy area that forms in the lens of the eye. It develops slowly and eventually interferes with your vision.

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Nearsightedness (Myopia)

Nearsightedness is an eye condition in which faraway objects appear blurry. Learn more about symptoms, causes, and treatment.

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Presbyopia is an eye condition that affects your ability to focus on close-up objects. Learn about what causes it and how to spot the symptoms.

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Farsightedness means it's easy for you to see things that are far away but not close-up. Discover other symptoms and treatment options.

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

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Retinal Detachment

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

Retinal detachment occurs when the retina separates from the back of the eye. This is a medical emergency that causes total or partial loss of vision.

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Stroke Overview

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

A stroke (a "brain attack") is a medical emergency in which part of the brain is deprived of oxygen. This occurs when an artery that supplies oxygenated blood to the brain becomes damaged and brain cells begin to die.

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Temporal Arteritis

Temporal arteritis occurs when the temporal arteries, which supply blood to the head and brain, become inflamed or damaged.

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Corneal Abrasion

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

The cornea is a thin, transparent dome that covers your eye's iris and pupil. The iris is the colored part of your eye, and the pupil is the black center. All light that enters your eye and allows you to see strike...

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Diabetic Retinopathy

Diabetic retinopathy is a condition that occurs as a result of damaged blood vessels of the retina in people who have diabetes. Diabetic retinopathy can develop whether you have type 1 or type 2 diabetes. While you ma...

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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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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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Strabismus is a disorder in which the eyes do not line up in the same direction. People with strabismus cannot look at the same object or place with both eyes at the same time. The condition is often referred to a...

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Optic Neuritis

The optic nerve carries visual information from your eye to your brain. Optic neuritis (ON) is when your optic nerve becomes inflamed, causing vision loss.

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Intracerebral Hemorrhage

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

Intracerebral hemorrhage (ICH) is when blood suddenly bursts into brain tissue, causing damage to the brain. Symptoms usually appear suddenly during ICH.

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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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Making Sense of Hypertensive Retinopathy

High blood pressure can damage the retina's blood vessels and limit the retina's function. It can also put pressure on the optic nerve.

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Benign Positional Vertigo

Benign positional vertigo (BPV) is the most common cause of vertigo. An episode is generally triggered by changing the position of your head.

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Retinal Vascular Occlusion

Retinal vascular occlusion occurs when one of the vessels carrying blood to or from your retina becomes blocked or contains a blood clot.

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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.