RT Journal Article SR Electronic T1 Visual fields: examination and interpretation. Third edition JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1179 OP 1179 DO 10.1136/bjophthalmol-2011-300357 VO 95 IS 8 A1 Matthew C Willett YR 2011 UL http://bjo.bmj.com/content/95/8/1179.1.abstract AB