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.

单词	gerontoxon
释义	gerontoxon 英汉-汉英词典老年环词组 \| 习惯用语您要查找的是不是： gerontocracy n. 老人统治；老年政府 grindstone n. 磨石;砂轮持续辛勤地工作；努力不懈 aeronautics adj. 航空(学)的 adj. 航空(学)的 gerontology n. 老年医学,老人学 gerontologist n. 老年医学家；老年问题专家，老年问题咨询师网络短语: gerontoxon 老年环; 是什么意思及发音; 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.
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gerontoxon

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网络短语:

Arcus senilis