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Vision problems after a traumatic brain injury or stroke can be of serious concern to patients. With a traumatic brain injury, in which the patient sustains an impact to the head that causes injury to the brain, vision problems, such as blurred vision, can occur even when the injury is mild. Patients who have a stroke, a neurological condition in which the blood supply in the brain becomes disrupted, can have various vision problems, include double vision, decreased vision or a loss of vision. In a booklet published by the Australian Government's Department of Health and Ageing, up to 30 percent of patients who have a traumatic brain injury or stroke have a visual impairment. These post-brain injury visual impairments can include difficulty recognizing objects, being unable to see on one side, blurred vision and increased glare sensitivity.
So how are these visual impairments associated with a traumatic brain injury or stroke treated? Patients may undergo different therapies to help increase their vision. Options include compensatory scanning training, prisms and vision restorative therapy. With compensatory scanning training, patients use equipment that teaches them “to systematically turn their head to look into their affected side, thus compensating for their vision loss,” according to the Australian Government's Department of Health and Ageing. Prisms can help shift an image into the unaffected part of a patient's visual field. Another treatment is vision restorative therapy, which uses a computer program to help treat the vision loss. One type of vision restorative therapy is from NovaVision, which is cleared by the U.S. Food and Drug Administration, according to a press release from the company.