RT Journal Article SR Electronic T1 Visual field defects in obstructive hydrocephalus JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 591 OP 597 DO 10.1136/jnnp.45.7.591 VO 45 IS 7 A1 PRD Humphrey A1 IF Moseley A1 RW Ross Russell YR 1982 UL http://jnnp.bmj.com/content/45/7/591.abstract AB Four cases are described in which visual field defects followed enlargement of the third ventricle. Three were due to aqueduct stenosis while in one case a left cerebellar hemisphere tumour was discovered. The visual field defects comprised a unilateral scotoma, bilateral scotomata and, in two patients, incongruous bitemporal hemianopia.