Genothalmic Ophthalmometer
name: label: Associated Name
content: Johns Hopkins University
label: maker
content: O'Brian Varnish Company
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 the form in the 1850s. An inscription on this example reads “Genothalmic Ophthalmometer / Cat. No. 3240 / Volts 115 / Watts 30 / Made in U.S.A.”
label: Description
content: Ref: W. B. Fisher, <i>The Genothalmic Refractor</i> (Mt. Vernon, N.Y.: General Optical Co., 1922).
label: Description
content: This item is part of a collection of equipment and instruments from the laboratory and clinic of allergist Dr. Leslie N. Gay (1891 - 1978). Gay received his medical degree from Johns Hopkins University in 1917. In 1923 he founded an allergy clinic at the university and served as director for 36 years. He and clinic colleague Paul E. Carliner developed Dramamine (dimenhydrinate), a preventative and cure for seasickness.
label: Description
content: This material was donated to the Smithsonian in 1979 by Gay’s son, Dr. Leslie N. Gay, Jr.
label: Description
content: [SEE: Gay L. N., Carliner P. E. (1949). The prevention and treatment of motion sickness. 1. Seasickness. <i>Science</i> 109, 359.]
label: Location
content: Currently not on view
place: label: used
content: United States: Maryland, Baltimore
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. Leslie N. Gay, Jr.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0306.02
label: accession number
content: 1979.0306
label: catalog number
content: 1979.0306.02
objectType: label: Object Name
content: Ophthalmometer
label: Object Name
content: ophthalmometer
label: Other Terms
content: Ophthalmometer; Medicine
physicalDescription: label: Measurements
content: overall: 54.3 cm x 24.2 cm x 64.5 cm; 21 3/8 in x 9 1/2 in x 25 3/8 in
label: Measurements
content: overall: 20 7/8 in x 26 3/4 in x 11 3/8 in; 53.0225 cm x 67.94779 cm x 28.8925 cm
label: Measurements
content: overall: p7096: 32 in x 48 in x 40 in; 81.28 cm x 121.92 cm x 101.6 cm