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Tiny tacks.

The dagger headed toward Lincoln's throat on this penny (inset) is actually a surgical tack used on pin recalcitrant detached retinas to the back of the eye where they belong. In cases where conventional surgical procedures can't get a diseased or torn retina to lie flat, one to five tacks are inserted through a cut in the white of the eye and removed months later after the retina has reattached itself. Refined froma Japanese procedure by Duke University researchers in Durham, N.C., the stainless steel tacks were first used eight months ago; so far four of the eight recipients have achieved a significant improvement in vision. A report on the process will appear in the March AMERICAN JOURNAL OF OPHTHALMOLOGY.
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Title Annotation:used in surgery for detached retina
Publication:Science News
Date:Feb 9, 1985
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