An Eyetooth for an Eye

Implanted tooth helps blind US woman recover sight

A 60-year-old US grandmother, blind for nearly a decade, has recovered her sight after surgeons implanted a tooth in her eye as a base to hold a tiny plastic lens, her doctors said Wednesday.

Sharron "Kay" Thornton, from the southern US state of Mississippi, lost her sight in 2000 when she came down with a case of Stevens-Johnson syndrome, a rare disease that scarred her cornea, according to the University of Miami's Bascom Palmer Eye Institute.

For patients whose bodies reject a transplanted or artificial cornea, this procedure "implants the patient's tooth in the eye to anchor a prosthetic lens and restore vision," said Thornton's surgeon Victor Perez.

In the procedure -- which was pioneered in Italy but was a first in the United States -- the medical team extracted Thornton's canine or "eyetooth" and surrounding bone, shaved and sculpted it, and drilled a hole into it to insert an optical cylinder lens.

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