Hemianopsia | Definition and Patient Education
Let's see if we can figure out what's causing your loss of vision in one half of the visual field.
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What causes loss of vision in one half of the visual field? 5 possible conditions

Hemianopsia is a loss of vision in half of the visual field of one eye or both eyes. Common causes are stroke, brain tumor, and trauma to the brain. Normally, the left half of the brain receives vision from the right eye, and vice versa. Information from... Read more

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

1

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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2

Subarachnoid hemorrhage

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

Subarachnoid hemorrhage (SAH) refers to bleeding within the subarachnoid space, which is the area between your brain and the tissues that cover it.

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3

Migraine with Aura

Migraine is a disorder characterized by repeated attacks of severe headache. Symptoms include throbbing or pulsating pain, usually on only one side of the head, and can last between four hours and three days.

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4

Meningitis

Meningitis can affect you differently depending on your age. Learn more about the symptoms and risk factors for each age group.

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5

Adult Brain Tumor

A brain tumor is the growth of abnormal cells in your brain. Whether the growth is cancerous or not, any brain tumor is serious. Symptoms can include both cognitive and physical control problems.

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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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