Artificial intelligent assistant

Snellen

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Snellen
and explorer of the Arctic Pieter Cornelius Tobias Snellen (1834–1911), Dutch entomologist Samuel Constantinus Snellen van Vollenhoven (1816–1880), Dutch entomologist See also Snellen chart, an eye chart developed by Herman Snellen References Dutch-language surnames Patronymic surnames wikipedia.org
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Snellen
Snellen Ophthalm. (ˈsnɛlən) The name of Hermann Snellen (1834–1908), Dutch ophthalmologist, used attrib. and in the possessive to designate: (a) a scale of similar square-serifed type-faces of different sizes, all subtending the same angle at different rated distances, proposed by him in 1862 (in hi... Oxford English Dictionary
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Visual Acuity Testing (Snellen Chart) - MDCalc
Ensure proper room lighting and set phone brightness to 100%. Hold the screen 4 feet (1.2 m) from the patient (approximately the end of a standard hospital bed if patient is sitting upright). Test each eye independently. The patient should completely cover the opposite eye. See Pearls/Pitfalls for further instructions.
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Herman Snellen
Herman Snellen (February 19, 1834 – January 18, 1908) was a Dutch ophthalmologist who introduced the Snellen chart to study visual acuity (1862). Snellen's charts became the global standard. wikipedia.org
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How Eye Charts Measure Your Vision - Verywell Health
Dec 29, 2023The Snellen eye chart is read by covering one eye and reading aloud the letters on the chart, beginning at the top and moving toward the bottom. The smallest row of letters that the patient reads accurately determines visual acuity in the uncovered eye. The other eye also is tested, and both eyes are tested together.
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Pieter Cornelius Tobias Snellen
Pieter Cornelius Tobias Snellen (30 August 1832 – 29 March 1911) was a Dutch entomologist. Pieter Snellen was a merchant in Rotterdam. Snellen met eene inleidung door Joh. F. Snelleman. wikipedia.org
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Samuel Constant Snellen van Vollenhoven
Samuel Constant Snellen van Vollenhoven (18 October 1816, Rotterdam – 22 March 1880) was a Dutch entomologist. He is not to be confused with Pieter Cornelius Tobias Snellen another entomologist from Rotterdam. wikipedia.org
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Chalciope (moth)
Species Chalciope alcyona Druce, 1888 Chalciope bisinuata Snellen, 1880 Chalciope delta (Boisduval, 1833) (= Chalciope crestonion (Snellen, 1902)) Chalciope emathion Snellen, 1902 Chalciope erecta Hampson, 1902 Chalciope imminua Snellen, 1902 Chalciope mygdon Cramer, [1777] Chalciope pusilla ( wikipedia.org
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Deanolis
Species Deanolis iriocapna (Meyrick, 1938) Deanolis sublimbalis Snellen, 1899 References Odontiinae Crambidae genera Taxa named by Pieter Cornelius Tobias Snellen wikipedia.org
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Steniodes
Steniodes is a genus of moths of the family Crambidae described by Snellen in 1875. Species Steniodes acuminalis (Dyar, 1914) Steniodes costipunctalis Snellen, 1899 Steniodes declivalis (Dyar, 1914) Steniodes deltoidalis (Snellen, 1875 wikipedia.org
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歧角螟属
Li, 2009 Wang & Li, 2005 (Moore, 1888) Snellen, 1880 Snellen, 1895 nigromaculata Hampson, 1916 Whalley, 1963 Whalley, 1963 Whalley, 1963 1891 Meyrick, 1932 Turner, 1904 Whalley, 1963 Whalley, 1963 Hampson, 1906 Whalley, 1963 simplex Janse, 1924 Janse, 1924 encaustalis Snellen wikipedia.org
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卡Snellen的临床表现有些什么？
眼球震颤；注视追视
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Cangetta
, 1872) (from Congo) Cangetta homoperalis Hampson, 1899 Cangetta micralis (Hampson, 1907) Cangetta murinalis Snellen, 1901 Cangetta primulina (Hampson, 1916) (from Cameroon) Former species Cangetta tridentalis (Snellen, 1872) References afromoths.net Spilomelinae Crambidae genera Taxa named by Frederic wikipedia.org
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视力表为什么要用 E 来测试视力？为什么不是其他符号？
这个表作为实际上的全国标准，根据国际视力表的1分视角、五米距离、小数记录等标准，最终全表改用Snellen氏E（也叫“文盲E” ）字视标而制成。 1966年, 缪天荣教授提出了5分对数视力表。经过长期的推广，对数表得到了广泛的应用。不过，E视标中间一划较短, 容易辨认和猜测, 视力就测不准了。 zhihu
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Tabidia
Tabidia is a genus of moths of the family Crambidae described by Pieter Cornelius Tobias Snellen 1880. Hampson, 1917 Tabidia inconsequens (Warren, 1896) Tabidia insanalis Snellen, 1879 (Borneo, Celebes, Papua New Guinea) Tabidia obvia Du & Li, 2014 Tabidia wikipedia.org
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