RT Journal Article SR Electronic T1 THE EYE AND PHOTOGRAPHIC LENSES JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 280 OP 282 DO 10.1136/bjo.8.6.280 VO 8 IS 6 A1 V. C. Verbitzky YR 1924 UL http://bjo.bmj.com/content/8/6/280.abstract AB