RT Journal Article SR Electronic T1 An infrequent response to slit-lamp examination. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 493 OP 495 DO 10.1136/bjo.53.7.493 VO 53 IS 7 A1 Lewkonia, I YR 1969 UL http://bjo.bmj.com/content/53/7/493.abstract AB