Double Vision Overview
Nearly half of the brain is used to see. More than a million optic fibers connect the eyes and eye muscles to the brain so that you can look all around your world. The brain processes the signals from the eyes to show images like flowers and faces that you recognize.
Some problems that may sound simple could be indications that the connection between your eyes and brain may be disturbed. Double vision or a loss of vision could be the first sign of disease. It is not normal to have sudden changes in vision, and this is one symptom that should be taken seriously. This could be an autoimmune problem like Myasthenia Gravis, thyroid problem, stroke, or even a brain tumor.
Called diplopia, some of the causes of this condition could include:
- Cornea infections where damage is distorting vision
- Weak extraocular muscles that could be caused by autoimmune diseases
- Brain problems such as: strokes, aneurysms, trauma, bleeding, infection, or brain tumors
- Double vision can be corrected with glasses fitted with prisms and surgery can also restore eye muscles function.