RT Journal Article SR Electronic T1 The Eye of God—the Helix Nebula JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1556 OP 1556 DO 10.1136/bjo.2009.174664 VO 93 IS 12 A1 Harminder S Dua A1 Aarti Dua A1 Arun D Singh YR 2009 UL http://bjo.bmj.com/content/93/12/1556.abstract AB