What causes altitudinal defect?
What causes altitudinal defect? Altitudinal visual field defect (VFD), which involves the loss of visual sensation in the horizontal half of the visual field, is caused mainly by anterior ischemic optic neuropathy (AION),1,2,3 or rarely by compressive neuropathy due to a tumor or aneurysm. What causes inferior altitudinal visual field Read more…