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The previous definition which used "best corrected visual acuity" was changed to "presenting visual acuity". This change was made as newer studies showed that best-corrected vision overlooks a larger proportion of the population who has visual impairment due to uncorrected refractive errors, and/or lack of access to medical or surgical treatment.
Particle image velocimetry, an optical method of flow visualization; Peak inverse voltage, in electronics; Pentium 4 microprocessor, produced by Intel ("IV" is Roman numeral for "4")
Gaston Waringhien, la sortie du premier dictionnaire illustré d′Espéranto, (Espéranto Actualités - Franca Esperantisto n.264 de jul-okt. 1970 1970:9) Ma Young-Tae, Studo pri Plena Ilustrita Vortaro de Esperanto, (Espero el Koreio nov-dic 1994, p. 12-14). Bertilo Wennergren, La nova PIV, Heroa verko - kun mankoj, (Monato 2002:23:10 25-27)
Vision rehabilitation (often called vision rehab) is a term for a medical rehabilitation to improve vision or low vision. In other words, it is the process of restoring functional ability and improving quality of life and independence in an individual who has lost visual function through illness or injury.
The Vision Institute (French: Institut de la Vision) is a research center in the Quinze-Vingts National Eye Hospital in Paris, France. It is one of several such centers ( Inserm / UPMC / CNRS ) in Europe on eye diseases.
SP 800-73, a NIST special publication, contains the technical specifications to interface with the smart card to retrieve and use the PIV identity credentials. [2] FIPS 201 was replaced by FIPS 201-2 [3] on September 5, 2013, [4] and by FIPS 201-3 in January 2022. [5] Deputy Secretary of the Interior P. Lynn Scarlett demonstrating a PIV card in ...
Vision of humans and other organisms depends on several organs such as the lens of the eye, and any vision correcting devices, which use optics to focus the image. The eyes of many animals contains a lens that focuses the light of its surroundings onto the retina of the eye. This lens is essential to producing clear images within the eye.
For rectifier applications, peak inverse voltage (PIV) or peak reverse voltage (PRV) is the maximum value of reverse voltage which occurs at the peak of the input cycle when the diode is reverse-biased. [4] [5] The portion of the sinusoidal waveform which repeats or duplicates itself is known as the cycle. The part of the cycle above the ...