Question: My father disappeared 35 years ago -- now he shows up. When he left, he had green eyes, but now he has blue eyes. Is this possible? Answer: This change in eye color can occur through the presence of arcus senilis, according to Walter Bortz, M.D., in Healthy Living: Ask Walter Bortz, M.D.Occurring in older people, arcus senilis is a ring of whitish cholesterol around the outer rim of the
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