Many cases are actually caused by changes in the prescription, either due to physical changes of the due to the scleral buckle, or, due to advancing cataract. There are many causes of decreased vision following retinal detachment surgery and many are described as “double vision.” What Does This Mean? True double vision, where the eyes are misaligned after surgery is quite uncommon after retinal detachment surgery. “Double vision ” can result from cataract formation by causing a strong shift in the prescription and by physically altering the light as it comes into the eye. This, too, can change the prescription of the eye pretty dramatically. A common side effect of intraocular gas is the hastened formation of a cataract. Gas is commonly used to repair a retinal detachment. This is probably the most common cause of “double vision” after retinal detachment surgery. With anisometropic double vision, one see double because the images are too different for the brain to make into one (this is, in part, why we get depth perception, the two eyes gives us slightly different views of the same image). Thus, with large changes, the brain actually sees two images of different sizes. Why? Inherent to large changes in prescription is a change in the actual size of the image that we see. Basically, this occurs when the prescription change between the two eyes is so large the brain actually does see double. Large differences between the two eyes leads to a condition called anisometropia. The prescription for glasses will change after scleral buckle surgery. Diplopia can occur with this muscle imbalance. The muscles may get injured or impaired such that the eye does not move in coordinated fashion with the other eye. The visual effect of a scleral buckle is an increase in myopia (nearsightedness) and/or astigmatism.Īt times, manipulation of the eye muscles can cause true double vision. Scleral Buckle May Cause DiplopiaĪ common method to fix a retinal detachment involves the use of a “scleral buckle.” This involves placing an element, usually silicone rubber, on the outside of the eye and underneath the eye muscles. There are several causes for really seeing two images following retinal detachment surgery. The perception of “double” is more common than actually seeing two of everything. Decreased vision and double vision (aka diplopia) after retinal detachment surgery may occur, yet is not common.
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