Ophthalmometer
name: label: maker
content: F.A. Hardy
notes: label: Description
content: An ophthalmometer (aka keratometer) 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 the form in 1851. The “F. A. HARDY & CO. / MAKERS / CHICAGO" inscription on this example refers to an optical and medical supply house established in 1884.
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: Gift of Dr. J. Staiman
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-07025
label: catalog number
content: M-07025
label: catalog number
content: 216897.02
label: accession number
content: 216897
objectType: label: Object Name
content: ophthalmometer
label: Other Terms
content: Ophthalmometer; Medicine
physicalDescription: label: Physical Description
content: iron; brass; paint; fabric; wire (overall material)
label: Measurements
content: overall: 59.5 cm x 22.5 cm x 49.3 cm x 41 cm; 23 7/16 in x 8 7/8 in x 19 7/16 in x 16 1/8 in