title: Kalt, keratoconus, and the contact lens.
abstract: A complete English translation is presented of the communication given in 1888 by Professor Photinos Panas in which he reported the innovative use by his junior colleague, Dr. Eugène Kalt, of a contact shell in a case of keratoconus. The patient showed a dramatic visual improvement but tolerance of the shell was limited to a few hours. A biography of Kalt is included, together with a number of explanatory notes.
authors.affiliation: Department of Optometry and Visual Science, City University, London, United Kingdom.
authors.forename: R M
authors.initials: RM
authors.lastname: Pearson
mesh_terms: D003261:Contact Lenses; D005602:France; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007640:Keratoconus / Q000628:therapy*; D009885:Ophthalmology / Q000266:history*