RT Journal Article SR Electronic T1 How dangerous a world is it? JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 6 OP 7 DO 10.1136/bjo.82.1.6 VO 82 IS 1 A1 H E WILLSHAW YR 1998 UL http://bjo.bmj.com/content/82/1/6.abstract AB