RT Journal Article SR Electronic T1 The Normal Refraction in Infancy and its bearing on the development of myopia JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 216 OP 217 DO 10.1136/bjo.19.4.216 VO 19 IS 4 YR 1935 UL http://bjo.bmj.com/content/19/4/216.abstract AB