Zadnik, Karla Diagnosis, contact lens prescribing, and care of the keratoconus patient : clinical practice in contact lenses / Karla Zadnik, Joseph T. Barr - Boston : Butterworth-Henemann , 1999 - 71 p. : ill. ; 21 cm. Includes bibliographical references and index ISBN: 0750696761 RM134.82 LCCN: 98-50994 Subjects--Topical Terms: Keratoconus--diagnosisKeratoconus--therapyContact lenses National Library of Medicine Call No.: WW220 / .Z17d 1999 9