Visual Defects in Patients With Pituitary Adenomas: The Myth of Bitemporal Hemianopsia

Abstract

BHA is exceedingly uncommon in patients with pituitary macroadenoma. However, although bitemporal and mixed defects are the most common abnormal VF findings, they were found in only 42.6% of patients. Such defects rarely occur if the tumor displaces the optic pathway less than 3 mm from baseline.