This is a story about a really cool scientific miracle.

An Irishman blinded by an explosion two years ago has had his sight restored after doctors inserted his son’s tooth in his eye, he said on Wednesday.

I’ve heard of “an eye for an eye” and a “tooth for a tooth” but never a tooth for an eye.

Bob McNichol, 57, from County Mayo in the west of the country, lost his sight in a freak accident when red-hot liquid aluminium exploded at a re-cycling business in November 2005. “I thought that I was going to be blind for the rest of my life,” McNichol told RTE state radio.

After doctors in Ireland said there was nothing more they could do, McNichol heard about a miracle operation called Osteo-Odonto-Keratoprosthesis (OOKP) being performed by Dr Christopher Liu at the Sussex Eye Hospital in Brighton in England.

The technique, pioneered in Italy in the 1960s, involves creating a support for an artificial cornea from the patient’s own tooth and the surrounding bone.

The procedure used on McNichol involved his son Robert, 23, donating his tooth. No word yet on whether it was his eye tooth. Sorry about that. I like puns.