The U.S. Food and Drug Administration had reassuring news last week for the 5,000,000 contact-lens wearers in the U.S., many of whom were fearful that something in the plastic might damage their eyes or even cause blindness. The scare originated a month ago with a report from a Boston ophthalmologist that he had tracked down 14 cases of blindness or near blindness among contact wearers and several hundred more of eye damage, all within three years. There was speculation that the damage might have come from impurities such as free acid in the...
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