RT Journal Article SR Electronic T1 BOOK REVIEW JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 194 OP 194 DO 10.1136/bjo.77.3.194-a VO 77 IS 3 A1 C I McPherson YR 1993 UL http://bjo.bmj.com/content/77/3/194.2.abstract AB