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Optometer (ophthalmic instrument) - Wikipedia
The optometer was a device used for measuring the necessary spherical and/or cylindrical corrections to be prescribed for eyeglasses en.wikipedia.org
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ILT2400 Hand-Held Light Meter / Optometer
The ILT2400 is the most advanced hand-held light/lux meter and opto ILT2400 hand held light meter/optometer meter on the market today. internationallight.com
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Optometers, Amplifiers and Display Meters Gigahertz-Optik
Optometers are a specific type of digital multimeter (DMM) used for optical radiation measurements. The particular light detector(s) connected determine the ... www.gigahertz-optik.com
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optometer
optometer (ɒpˈtɒmɪtə(r)) [opto- + -meter.] A name of instruments of various kinds, for measuring or testing vision, in respect of range, acuteness, perception of form or colour, etc.; esp. one for measuring the refractive power of the eye and thus testing long- or short-sightedness.1738 W. Porterfie... Oxford English Dictionary
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OPTOMETER Definition & Meaning - Dictionary.com
An optometer is an instrument for measuring refractive errors in eyes— in order that corrective lenses may be prescribed. From Literature. Opsiometer, op-si-om ... www.dictionary.com
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What is an Optometer? - Unacademy
An optometer is an instrument that measures the eye's refraction. It is also known as an autorefractor and helps determine the necessary spherical or ... unacademy.com
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Optometer
Optometer may refer to: Autorefractor, a modern electronic instrument for automatically refracting vision for eyeglasses. Optometer (ophthalmic instrument), the earliest name for a phoropter, for refracting vision for eyeglasses. wikipedia.org
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An infrared eccentric photo-optometer - PubMed
An objective infrared optometer has been designed, based on the optical principles of eccentric photorefraction. A CCD camera with an eccentric infrared ... pubmed.ncbi.nlm.nih.gov
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Huanyu Automatic Refractor Optometry Equipment Auto ...
With the world's leading refractive measurement technology, the measurement pupil is smaller. The self-checking system is introduced into the instrument, which ... www.amazon.com
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METAL OPTOMETER - jAdis
Nickel plated measuring tool circa 1900 with calibrated scale and inscribed “convex” and “concave”. When looking through the eyepiece, one would slide the “ ... www.jadisprops.com
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Optometer | National Museum of American History
An optometer is used for determining the refractive index of eyes. This example was apparently designed for buying glasses without the help of an optician or ... americanhistory.si.edu
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Optometer (ophthalmic instrument)
The optometer was a device used for measuring the necessary spherical and/or cylindrical corrections to be prescribed for eyeglasses, from the middle of When the optometer and were combined into single instruments, the modern refractor/phoropter was born. wikipedia.org
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opsiometer
opsiometer (ɒpsɪˈɒmɪtə(r)) [mod. f. Gr. ὄψι-ς sight + -ometer.] = optometer.1842 Brande Dict. Sci. etc., Opsiometer, an instrument for measuring the extent of the limits of distinct vision in different individuals, and consequently for determining the focal lengths of lenses necessary to correct imp... Oxford English Dictionary
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optometry.
optometry. [f. optometer: see -metry.] The measurement of the visual powers; the use and application of the optometer; also, the occupation concerned with the measurement of the refractive power of the eyes and the prescription of corrective lenses.1886 C. M. Culver tr. Landolt's Refraction & Accomm... Oxford English Dictionary
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Optometry
The word entered the language when the instrument for measuring vision was called an optometer, (before the terms phoropter or refractor were used). Although the term optometer appeared in the 1759 book A Treatise on the Eye: The Manner and Phenomena of Vision by Scottish physician William Porterfield wikipedia.org
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