title: D.B. Kagenaar and the ophthalmometer by Javal-Schiøtz.
abstract: In the years 1881-1890 the Utrecht instrumentmaker D.B. Kagenaar, laboratory attendant of Donders and Snellen, played an important role in the introduction on the German market of the ophthalmometer developed by Javal and Schiøtz.
authors.affiliation: F.C. Donders Institute of Ophthalmology Utrecht, The Netherlands.
authors.forename: I
authors.initials: I
authors.lastname: Den Tonkelaar
authors.forename: G K
authors.initials: GK
authors.lastname: Van Leersum
authors.forename: H E
authors.initials: HE
authors.lastname: Henkes
mesh_terms: D001251:Astigmatism / Q000175:diagnosis / Q000266:history; D003315:Cornea / Q000473:pathology; D049672:History, 19th Century; D006801:Humans; D009426:Netherlands; D009885:Ophthalmology / Q000266:history* / Q000295:instrumentation