Double vision occurs when the vision system is experiencing problems with the cornea, the muscles in the eye or autoimmune disorders, according to WebMD. People with nerve conditions or brain problems may also experience double vision.
Some people experience double vision as a result of cataracts, explains WebMD. Cataracts that are present in both eyes can distort the images and vision. Minor surgery is often used to correct cataracts.
Certain diseases and conditions can cause double vision in patients, according to WebMD. Individuals with myasthenia gravis experience drooping eyelids and double vision from the autoimmune illness that can block the muscle stimulation inside the head. Graves' disease, a thyroid condition, can also affect the muscles of the eyes and cause double vision.
Common nerve conditions, such as multiple sclerosis, can affect nerves in the brain or spinal cord, leading to double vision, especially when nerves controlling the eyes become damaged, explains WebMD. Nerve conditions that cause progressive weakness, such as Guillain-Barre syndrome and diabetes, can cause double vision when nerve damage affects muscles that move the eyes.
Damaged nerves that connect the brain to the eyes can lead to brain tumors, strokes or aneurysms, causing double vision, according to WebMD. People with migraine headaches or increased brain pressure as a result of infection, bleeding or trauma are also prone to double vision.