RT Journal Article SR Electronic T1 The negative impact of amblyopia from a population perspective: untreated amblyopia almost doubles the lifetime risk of bilateral visual impairment JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1417 OP 1418 DO 10.1136/bjo.2007.122168 VO 91 IS 11 A1 Nilsson, Josefin YR 2007 UL http://bjo.bmj.com/content/91/11/1417.abstract AB