Bob McNichol, 57, fromin 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.
Aftersaid 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 .
The technique, pioneered inin 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 a tooth, its root and part of the jaw.
McNichol's right eye socket was rebuilt, part of the tooth inserted and a lens inserted in a hole drilled in the tooth.
The first operation lasted ten hours and the second five hours.
"It is pretty heavy going," McNichol said. "There was a 65 percent chance of me getting any sight.
"Now I have enough sight for me to get around and I can watch television. I have come out from complete darkness to be able to do simple things," McNichol said.