Blind Grandma’s Eyetooth Helps Her Regain Sight

Sharron Thornton, a 60-year-old grandmother who lost sight in both eyes 9 years ago due to a rare corneal disease, can see again after docs implanted a part of one of her eyeteeth into her left eye. The procedure known as as modified osteo-odonto-keratoprosthesis, was the first of its kind performed in the United States. [...]