Double Vision Symptoms
Symptom Checker: Symptoms & Signs Index
Double vision, or "seeing double," occurs when two nonmatching images are sent to the part of the brain that is responsible for processing visual input. If this occurs over the long term, the brain will eventually compensate for the two signals by suppressing one signal, so that a single image is perceived. The suppressed eye may eventually become amblyopic ("lazy eye") with resultant vision loss.
Double vision can result from impairment in any part of the vision system, including the cornea, eye muscles, lens, nerves, or the brain. The most common cause of diplopia is misalignment of the two eyes that can arise from several different conditions. Some diseases such as myasthenia gravis and Grave's disease can cause weakness of the eye muscles, leading to misalignment of the eyes and double vision. Poorly controlled diabetes can ultimately result in nerve damage that can manifest as diplopia, and diplopia can arise as a result of stroke, head injury, or other brain damage. While diplopia can be a symptom of the conditions listed below, it is not always present in these conditions.
Main Articles on Double Vision
Causes of Double Vision
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Alcoholism
Alcoholism is a disease that includes alcohol craving and continued drinking despite repeated alcohol-related problems, such as...learn more »
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Aneurysm (Brain)
Brain aneurysm (cerebral aneurysm) is caused by microscopic damage to artery walls, infections of the artery walls, tumors,...learn more »
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Botulism
Botulism is an illness caused by a neurotoxin produced by the bacterium Clostridium botulinum. There are three types of botulism:...learn more »
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Brain Tumor
A brain tumor can be either benign (non cancerous) or malignant (cancerous), primary, or secondary. Causes and risk factors...learn more »
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Cataracts
A cataract is an eye disease that causes the eye's lens to become cloudy and opaque with decreased vision. Causes of cataracts...learn more »
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Concussion
Concussion is a short-lived loss of brain function that is due to head trauma. There are two types of concussion, simple and...learn more »
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Double Vision
Double vision (diplopia) is a symptom that my indicate Graves' disease, myasthenia gravis, stroke, multiple sclerosis,...learn more »
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Head Injury
In the United States, head injuries are one of the most common causes of death and disability. Head injuries due to bleeding are...learn more »
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Migraine
Migraine is usually periodic attacks of headaches on one or both sides of the head. These may be accompanied by nausea, vomiting,...learn more »
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Multiple Sclerosis
Multiple sclerosis (MS) is a disease which progressively injures the nerves of the brain and spinal cord, reflected by...learn more »
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Myasthenia Gravis
Myasthenia gravis, a chronic autoimmune neuromuscular disease. Varying degrees of weakness of the voluntary muscles of the body...learn more »
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Retinal Detachment
Retinal detachment is the separation of the retina from its attachments to the underlying eye tissue. Symptoms of retinal...learn more »
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Stroke
A stroke results from impaired oxygen delivery to brain cells via the bloodstream. A stroke is also referred to as a CVA, or...learn more »
Other Causes of Double Vision
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Convergence Insufficiency
- Graves' Disease
- Increased Intracranial Pressure
- Infection of the Cornea
- Medication Side Effects
- Rare Complication of Surgery Such as LASIK
Examples of Medications for Double Vision
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