RT Journal Article SR Electronic T1 Selected Studies in Visual Optics JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 125 OP 126 DO 10.1136/bjo.37.2.125 VO 37 IS 2 YR 1953 UL http://bjo.bmj.com/content/37/2/125.abstract AB