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单词 arcus senilis
释义

arcus senilis /'ɑ:kəssi'nailis/

英汉-汉英词典
老年环
词组 | 习惯用语
您要查找的是不是:
    arcus senili 老年环
    Arcus senilis corneae 角膜老年环
    arcus senilis lentis 翻译
    corneal arcus senilis 角膜老年环
    arcus senilis halo vision 目晕
arcus senilis 老年环;[眼科] 老人弓
英语百科

Arcus senilis

Arcus senilis (or arcus senilis corneae) is a white, grey, or blue opaque ring in the corneal margin (peripheral corneal opacity), or white ring in front of the periphery of the iris. It is present at birth, but then fades; however, it is quite commonly present in the elderly. It can also appear earlier in life as a result of hypercholesterolemia. Arcus senilis can be confused with the limbus sign, which reflects calcium rather than lipid deposits.

近义、反义、联想词
近义词
n.
cornea

英英词典
arcus senilis n.
  1. an whitish deposit in the shape of an arc that is sometimes seen in the cornea

  2. synonymous: arcus
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