Strabismometer
date: label: date made
content: ca. 1870
notes: label: Description
content: A strabismometer measures strabismus, a misalignment causing one eye to deviate inward (esotropia) toward the nose, or outward (exotropia), while the other eye remains focused. The “WEISS” inscription on the handle of this ivory example is that of a major medical instrument firm in London.
label: Description
content: John Zachariah Laurence (1829 -- 1870), English opthalmologist and founder of the Ophthalmic Review, is credited with developing the strabismometer. For an illustration and description of its use, see his book, Optical defects of the eye, and their consequences, asthenopia and strabismus (Hardwick, London, 1865), pages 107-109.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
label: associated place
content: United States: Massachusetts, Arlington
topic: label: associated subject
content: Orthoptics
label: associated subject
content: Ophthalmology
setName: label: See more items in
content: Medicine and Science: Medicine
label: See more items in
content: Health & Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1987.0740.01
label: catalog number
content: 1987.0740.01
label: accession number
content: 1987.0740
objectType: label: Object Name
content: strabismometer
physicalDescription: label: Physical Description
content: ivory (overall material)
label: Measurements
content: average spatial: .2 cm x 2.7 cm x 8.3 cm; 1/16 in x 1 1/16 in x 3 1/4 in
label: Measurements
content: overall: 1/4 in x 3 1/4 in x 1 1/8 in; .635 cm x 8.255 cm x 2.8575 cm