RT Journal Article SR Electronic T1 Alternative eye care JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 767 OP 768 DO 10.1136/bjo.85.7.767 VO 85 IS 7 A1 NICK ASTBURY YR 2001 UL http://bjo.bmj.com/content/85/7/767.abstract AB