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Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...
Podiatry. Podiatry (/ poʊˈdaɪ.ətri / poh-DY-ə-tree), or podiatric medicine and surgery (/ ˌpoʊdiˈætrɪk, poʊˈdaɪ.ətrɪk / POH-dee-AT-rik, poh-DY-ə-trik), is a branch of medicine devoted to the study, diagnosis, and treatment of disorders of the foot, ankle and lower limb. The healthcare professional is known as a podiatrist. [1]
Length. For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use. From 1893, the foot was legally defined as exactly 1200⁄3937 m (approximately 0.304 8006 m). [13] Since July 1, 1959, the units of length have been defined on the basis of 1 yd = 0 ...
An example of the Landolt C eye chart (also known as the Japanese eye chart.). Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision, while the ETDRS chart is designed for use at 4 meters. [16]
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Human height measurement using a stadiometer. Human height or stature is the distance from the bottom of the feet to the top of the head in a human body, standing erect.It is measured using a stadiometer, [1] in centimetres when using the metric system or SI system, [2] [3] or feet and inches when using United States customary units or the imperial system.
The results of a new large-scale study published in The BMJ suggest that a relatively new diabetes drug might reduce the risk of developing dementia in people with type 2 diabetes. Taking SGLT-2 ...
Pinochle. Aces around, dix or double pinochles. Score points by trick-taking and also by forming combinations of cards into melds. By Masque Publishing. Advertisement. Advertisement. Feedback. Help.