RT Journal Article SR Electronic T1 Striving for the perfect keratoprosthesis JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 3 OP 4 DO 10.1136/bjo.82.1.3 VO 82 IS 1 A1 CHRISTOPHER LIU A1 BRIAN TIGHE YR 1998 UL http://bjo.bmj.com/content/82/1/3.abstract AB