Videofluoroscopic swallow study: A test performed by a speech and language pathologist for someone who has trouble swallowing. An X-ray is taken of the swallowing process while different textures of food and drink are trialed to determine if the person can safely eat and drink.
Visual fields: Entire area one sees while looking forward, including what is seen in the periphery or sides.
Visual field defect: A loss of part of the usual field of vision that does not include blindness of one eye or both. This can be caused by a stroke affecting the part of the brain that controls vision. Homonymous hemianopsia, or homonymous hemianopia, is a type of visual field defect that describes the loss of vision on the same side of both eyes.