RT Journal Article SR Electronic T1 Anterior ischaemic optic neuropathy. III. Treatment, prophylaxis, and differential diagnosis. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 981 OP 989 DO 10.1136/bjo.58.12.981 VO 58 IS 12 A1 S S Hayreh YR 1974 UL http://bjo.bmj.com/content/58/12/981.abstract AB