角膜老年环起初混浊在角膜的

试卷相关题目

• 1Fuchs corneal dystrophy is marked by all of the following except

  A.Epithelial edema

  B.Subepithelial fibrosis

  C.Stromal inflammation

  D.Thickening of the posterior banded layer of Descemet membrane

  E.Endothelial pleomorphism and polymegathism

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• 2What percentage of scrapings yields positive cultures in Acanthamoeba keratitis

  A.Less than 10%

  B.10% to 20%

  C.20% to 30%

  D.40% to 50%

  E.65% or more

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• 3Which is the best smear for diagnosing Acanthamoeba keratitis

  A.Calcofluor white

  B.Giemsa

  C.Gomori Methenamine Silver

  D.Gram

  E.Papanicolau

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• 4In the following description of Moorens ulcer, which is true

  A.are painful

  B.run a chronic course of 30 years

  C.may show scleral involvement

  D.are not associated with uveitis

  E.only occurs in elderly patients

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• 5神经麻痹性角膜炎的病因是

  A.第Ⅵ对脑神经麻痹引起

  B.第Ⅴ对脑神经第一支麻痹引起

  C.第Ⅴ对脑神经第二支麻痹引起

  D.角膜上皮剥脱引起

  E.睑外翻使角膜失去保护引起

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• 6带状角膜病变主要累及角膜的

  A.上皮层

  B.前弹力层

  C.基质层

  D.后弹力层

  E.内皮层

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• 7有关边缘性角膜变性的描述，错误的是

  A.主要是Bowman膜阙如或不完整

  B.常于青年时期开始

  C.多有明显疼痛、畏光

  D.角膜边缘部变薄扩张

  E.变薄区有浅层新生血管

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