Ophthalmometer
date: label: date made
content: ca 1900
label: Associated Date
content: 1899-08-22
name: label: maker
content: Julius King Optical Company
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. An inscription on the chin rest of this example reads "C.I. Ophthalmometer - Pat. AUG. 22, 99 - Chicago, ILL. U.S.A." Another inscription reads "Julius King / Optical Co. / New York."
label: Description
content: Ref: Charles Chambers Inskeep and John Edgerly Chambers, “Opthalmometer,” U.S. Patent 631,307 (Aug. 22, 1899).
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. Jacob Staiman
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-09329
label: catalog number
content: M-09329
label: accession number
content: 223937
objectType: label: Object Name
content: Opthalmometer
label: Object Name
content: ophthalmometer
label: Other Terms
content: Opthalmometer; Medicine
physicalDescription: label: Physical Description
content: iron; brass; paint; glass; fabric; plastic; paper (overall material)
label: Measurements
content: overall: 56 cm x 22.4 cm x 41.4 cm x 31 cm; 22 1/16 in x 8 13/16 in x 16 5/16 in x 12 3/16 in
label: Measurements
content: overall: 22 5/8 in x 12 1/4 in x 15 in; 57.4675 cm x 31.115 cm x 38.1 cm
label: Measurements
content: overall: p7082: 35 in x 48 in x 42 in; 88.9 cm x 121.92 cm x 106.68 cm