RICHARD C. KEECH
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To the Editor: I have read with interest the article "Arcus Not So Senilis," which appeared in the ANNALS OF INTERNAL MEDICINE in February 1968, and the letters of comment in the April 1968 number.
Deposits of lipoid material in the periphery of the cornea near the sclera frequently form incomplete circles, and therefore may properly be called arcs. Both of the examples of arcus senilis in Adams' Physical Diagnosis, 14th edition, p. 89, are of this sort. And a circle might be considered an arc with 360 deg of curvature.
I vote for the terms "arcus corneae" and "corneal
KEECH RC. Corneal Arc Full Circle. Ann Intern Med. 1968;68:1369. doi: 10.7326/0003-4819-68-6-1369_1
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Published: Ann Intern Med. 1968;68(6):1369.
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