Ophthalmometer
name: label: maker
content: General Optical Company
notes: label: Description
content: An ophthalmometer measures the curvature of the anterior surface of the cornea, and so is used to assess the extent and axis of astigmatism. The German physiologist Hermann von Helmholtz introduced an example in the 1850s. This one, s/n 2529, was made by the General Optical Co. in Mount Vernon, N.Y.; that firm became the General Optical Co., Inc. in 1913. The patent date indicates that it was designed by Ferdinand Buchhop (1858-1934), and assigned to the Meyrowitz Manufacturing Co.
label: Description
content: Ref: Ferdinand Buchhop, “Ophthalmometer,” U.S. Patent 1,006,825 (Oct. 24, 1911), assigned to the Meyrowitz 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-07029
label: catalog number
content: M-07029
label: catalog number
content: 216897.06
label: accession number
content: 216897
objectType: label: Object Name
content: Ophthalmometer
label: Other Terms
content: Ophthalmometer; Opthalmometer; Medicine
physicalDescription: label: Measurements
content: overall: 50.5 cm x 29 cm x 67 cm; 19 7/8 in x 11 7/16 in x 26 3/8 in