RT Journal Article SR Electronic T1 A blind spot tester. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 92 OP 93 DO 10.1136/jnnp.44.1.92 VO 44 IS 1 A1 Arbit, E A1 Ruff, R L YR 1981 UL http://jnnp.bmj.com/content/44/1/92.abstract AB