Produced by Bryan Ness, Martin Pettit and the Online Distributed Proofreading Team at http://www.pgdp.net (This book was produced from scanned images of public domain material from the Google Print project.) GLAUCOMA A SYMPOSIUM PRESENTED AT A MEETING OF THE CHICAGO OPHTHALMOLOGICAL SOCIETY, NOVEMBER 17, 1913. EDITED BY WILLIS O. NANCE, M.D., PRESIDENT CHICAGO OPHTHALMOLOGICAL SOCIETY (1913); OPHTHALMIC SURGEON, ILLINOIS CHARITABLE EYE AND EAR INFIRMARY; FORMER OCULIST AND AURIST, COOK COUNTY HOSPITAL; EDITOR JOURNAL OF OPHTHALMOLOGY AND OTO-LARYNGOLOGY, AND WESLEY HAMILTON PECK, M.D., PRESIDENT CHICAGO OPHTHALMOLOGICAL SOCIETY (1914); FORMER PROFESSOR OPHTHALMOLOGY, CHICAGO EYE, EAR, NOSE AND THROAT COLLEGE; ASSISTANT SURGEON, ILLINOIS CHARITABLE EYE AND EAR INFIRMARY; OPHTHALMIC SURGEON, OAK PARK HOSPITAL. 1914 CHICAGO MEDICAL BOOK COMPANY CHICAGO COPYRIGHT 1914 BY CHICAGO MEDICAL BOOK COMPANY CONTRIBUTORS EDWARD JACKSON, A.M., M.D. Prof. Ophth. Univ. Colo.; Emer. Prof. Ophth. Phila. Polyclinic; Ex-Ch. Sec. Ophth. A.M.A.; Ex-Pres. Am. Acad. Med. and Am. Acad. Ophth. and Oto-Laryng.; Mem. Am. Ophth. Soc. and Honorary Mem. Chicago Ophth. Society. JOHN ELMER WEEKS, M.D., D.Sc. Prof. Ophth. Univ. and Bellevue Hosp. Med. Coll., N.Y.; Ophth. Surg. N.Y. Eye and Ear Inf.; Mem. Am. Ophth. Soc.; Hon. Mem. Chicago Ophth. Soc. and Royal Hungarian Med. Soc. Budapest. GEORGE EDMUND DE SCHWEINITZ, A.M., LL.D., M.D. Prof. Ophth. Univ. Penn.; Ophth. Surg. Univ. Hosp., Phila. Hosp., Orthop. Hosp. and Inf. for Nerv. Dis.; Consult. Ophth. Surg, Phila. Polyclinic; Honorary Member Chicago Ophth. Soc. ROBERT HENRY ELLIOT, M.D., B.S. LOND., Sc.D. EDIN., F.R.C.S. ENG., ETC., LIEUT.-COLONEL, I.M.S. Supt. Gov. Ophth. Hosp., Madras. India; Prof. Ophth. Med. Coll., Madras; Fellow Univ. of Madras; Honorary Member Chicago Ophthalmological Society, U.S.A. CASEY A. WOOD, M.D., C.M., D.C.L. Prof. Ophth. Univ. Ill.; Late Prof. Ophth. N. W. Univ.; Ex-Pres. Am. Acad. of Med.; Am. Acad. Ophth. and of the Chicago Ophth. Soc.; Ophthalmic Surg. St. Luke's Hosp.; Consulting Ophth. Surg. St. Luke's and Cook County Hosp.; Ex-Ch. Ophth. Sec. A.M.A.; Editor System Ophth. Therapeutics. Sys. Ophth. Operations and American Encylopedia Ophthalmology. FRANCIS LANE, A.B., M.D. Pathologist and Asst. Ophthalmic Surgeon Ill. Char. Eye and Ear Inf.; Instructor in Ophth. Rush Med. Coll.; Asst, Ophth. Surg. Presbyterian Hospital. E. V. L. BROWN, M.D. Asst. Prof. Pathology of the Eye, Univ. Chicago; Asst. Prof. Ophth. Rush Med. College; Ophth. Surg. Ill. Eye and Ear Inf. and Cook County Hosp.; Mem. Am. Ophth. Soc. NELSON M. BLACK, PH.G., M.D. Author of The Development of the Fusion Center in the Treatment of Strabismus; Examination of the Eyes of Transportation Employes; Artificial illumination a Factor in Ocular Discomfort, etc.