Vision changes can also occur in cerebral cavernous malformation patients. These might occur alongside speech difficulties or other sensory issues. The changes in vision are typically related to a hemorrhage in the sensory processing portion of the brain. How they present varies widely, since the position and effects of every cerebral cavernous malformation are different. The brain may have trouble interpreting the data being sent through the optic nerve. There might also be interrupted connections between the brain and the optic nerve. Changes in vision might be gradual, especially if the bleeding occurs over a long period. A patient might notice their peripheral vision dimming, they may struggle to perceive shadows and shapes, or they might have skewed depth perception. The changes in vision might also be more typical-seeming ones like blurriness that needs correction with eyeglasses. If individuals are experiencing vision changes that aren't helped by glasses, it's best to see an ophthalmologist. They'll be able to determine whether the cause is in the patient's eyes or if it's neurological.
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