Javal-Schiotz Ophthalmometer
name: label: maker
content: E.B. Meyrowitz
notes: label: Description
content: An ophthalmometer (aka keratometer) measures the curvature of the anterior surface of the cornea, and so can be used to assess the extent and axis of astigmatism. The German physiologist Hermann von Helmholtz introduced the basic form in 1851. The Javal-Schiotz two position instrument was introduced in 1881, An inscription on a brass plate of this example reads “Javal-Schiotz Ophthalmometer / Patented No. 1485 / E. B. Meyrowitz Maker New York, Paris, London”
label: Description
content: Louis Émile Javal (1839-1907) was a French ophthalmologist who established an ophthalmological laboratory at the Sorbonne. Hjalmar August Schiøtz (1850-1927) was a Norwegian ophthalmologist who worked in the laboratory.
label: Description
content: Ref: L. Javal and H. Schiötz, “Un opthalmomètre pratique,” <i>Annales d’Oculistique</i> 86 (1881): 5-21.
label: Description
content: Emil B. Meyrowitz, “Ophthalmometer,” U.S. Patent 875,278 (Dec. 31, 1907), assigned to The Meyerowitz Manufacturing Co.
label: Location
content: Currently not on view
topic: label: associated subject
content: Ophthalmology
setName: label: See more items in
content: Medicine and Science: Medicine
label: See more items in
content: Health & Medicine
creditLine: label: Credit Line
content: Dr. J. Staiman
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-07024
label: catalog number
content: M-07024
label: catalog number
content: 216897.01
label: accession number
content: 216897
objectType: label: Object Name
content: Ophthalmometer
label: Object Name
content: ophthalmometer
label: Other Terms
content: Ophthalmometer; Medicine
physicalDescription: label: Measurements
content: overall: 39 cm x 33 cm x 63 cm; 15 3/8 in x 13 in x 24 13/16 in