| 释义 |
arcus senilis Path.|ˈɑːkəs siːˈnaɪlɪs|
[L., lit. ‘senile bow’.]
A narrow opaque band encircling the cornea, common in old age.
1795J. Ware Remarks Ophthalmy (ed. 3) App. 25 In elderly persons an opacity..appears round the whole circumference of the Cornea... This change in the structure of the Cornea has been described by authors under the name of Gerontoxon, vel Arcus Senilis. Ibid., After the Arcus Senilis had been some time formed, a slight Ophthalmy ensued. 1920A. E. W. Mason Summons i. 8 The pupils of his pale eyes were ringed with so pronounced an arcus senilis that they commanded the attention like a disfigurement. 1942Lancet 5 Sept. 287/2 Arcus senilis and arteriosclerosis both arise in elderly people..but..it is safe to say that the possession of an arcus senilis does not mean its owner has vascular disease. |