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Double Vision (cont.)

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What is the treatment for double vision?

Once the underlying cause has been determined, treatment can be tailored to the underlying cause.

Most causes of monocular diplopia stem from poor focusing of light by the eye, and treatment is thus aimed at correcting the underlying cause of the blur. For example, refractive errors (myopia, hyperopia, astigmatism) can be corrected with glasses or contact lenses, dry eye with artificial tears and/or tear duct plugs, and cataracts (clouding of the natural lens) with surgery. Other conditions that interfere with proper focusing of light include corneal warping or scars and retinal conditions such as epiretinal membranes. Treatments are tailored to the specific condition believed to be causing the blurred images. Rarely is the underlying cause a medical emergency in cases of monocular diplopia.

Binocular diplopia on the other hand is produced by a misalignment of the eyes which can be caused by life-threatening conditions. For example, aneurysms, strokes, trauma, and cancers can interfere with the nerves that control the extraocular muscles (the muscles that move the eyes in different direction of gaze, much like the strings on a marionette). Diseases such as myasthenia gravis can interfere with the communication between the nerves and the eye muscles. And the eye muscles themselves can be damaged or compressed by conditions such as thyroid disease, orbital inflammations, vascular disease (as seen with diabetes and high blood pressure), and others. Following traumatic fracture of the orbital bones, muscles and orbital tissue may be trapped in the fracture, leading to misalignment due to restriction of eye movement in certain gaze directions. Sometimes the cause is relatively harmless, such as when the eye muscles or neurologic signals to the muscles weaken with fatigue or illness. Convergence insufficiency, or inability to align the eyes when focusing on a near object, is a common benign cause of intermittent binocular diplopia that can often be treated with eye exercises and/or glasses with prisms.

Medically Reviewed by a Doctor on 8/28/2013

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Source: MedicineNet.com
http://www.medicinenet.com/double_vision/article.htm

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