optometern.
/ɒpˈtɒmᵻtə/, U.S. /ɑpˈtɑmədər/ Ophthalmology.
An instrument for measuring or testing vision; esp. one for measuring the refractive power of the eye and thus testing long- and short-sightedness.
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the world > health and disease > healing > ophthalmology or optometry > [noun] > instrumental examination or measurement of eye > instruments used in
optometer1738
opsiometer1842
ophthalmoscope1856
auto-ophthalmoscope1863
ophthalmometer1864
phacoidoscope1864
strabismometer1869
autoscope1873
strabometer1874
perimeter1875
leucoscope1883
retinoscope1883
phacoscope1886
phorometer1888
campimeter1889
prisoptometer1890
scotometer1890
skiascope1892
transilluminator1906
slit lamp1922
anomaloscope1923
gonioscope1925
synoptophore1934
1738 W. Porterfield in Med. Ess. & Observ. (ed. 2) IV. 185 The Instrument formerly mentioned; which..I have called an Optometer.
1801 Philos. Trans. (Royal Soc.) 92 5 Dr. Young..constructed an optometer, upon the principle of that of Dr. Porterfield.
1886 Leeds Mercury 15 Feb. 5/6 The spectroscopic optometer is available for the study of flames in the Bessemer converter.
1931 Science 1 May 479/1 [Awards] Walter F. Dearborn..for the construction of a stereoscopic optometer to study differences in the eyes of children who have difficulty in learning to read.
1974 Nature 25 Oct. 729/1 Because the eye was positioned one focal length behind the Maxwellian lens, the apparatus served as a Badal optometer.
2002 Ophthalmic & Physiol. Optics 22 359 A continuously recording infra-red optometer was used to measure accommodation on a group of five visually normal emmetropic subjects.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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