The<unk>  is a ring of dystrophic calcification evident as a "milky precipitate" (i.e. abnormal white color) at the corneal<unk> . The corneal<unk>  is the part of the eye where the cornea (front/center) meets the sclera (white part of the eye). Thought to be caused by increased calcium concentration in the blood, this sign however persists after calcium phosphate concentration returns to normal. Compare the<unk>  (calcification) with arcus senilis (lipid).
Limbus sign
Bing's sign
Lincoln sign
Steeple sign
Puddle sign
Thumbprint sign
Pemberton's sign
Fothergill's sign