Factors Affecting Visual Outcomes after Transsphenoidal Pituitary Adenectomy

Abstract

Background: Pituitary tumoursare considered to be about 10-15% of all brain tumours, of which 9% are the adenomas, which are classified by size and ability to secrete hormones or not. Most commonly non-functional pituitary adenomas and less commonly functional pituitary adenomas present with visual disturbances due to optic chiasm compression over time. The most commonly expressed visual field pattern is the bitemporal hemianopia.