Fig. 15. Bilateral incomplete hemianopia. A 69-year-old man with decreased vision after prostate surgery. A. Fields show remaining central parafoveal vision with some sparing of inferior left quadrant. Note how the defect respects the vertical meridian. B. MRI shows bilateral medial occipital infarction, with sparing of the occipital poles, accounting for the macular-sparing bilaterally. (Courtesy of Dr. Lucia Vaina.)