RT Journal Article SR Electronic T1 Consent of the blind and visually impaired: a time to change practice JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 310 OP 311 DO 10.1136/bjo.2003.025239 VO 88 IS 2 A1 G M Saleh YR 2004 UL http://bjo.bmj.com/content/88/2/310.abstract AB