RT Journal Article SR Electronic T1 PERSPEX PROSTHESIS FOR THE LACRIMAL SAC AND NASO-LACRIMAL DUCT JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 186 OP 188 DO 10.1136/bjo.43.3.186 VO 43 IS 3 A1 Moore, L. H. G. YR 1959 UL http://bjo.bmj.com/content/43/3/186.abstract AB