Sunday, July 19, 2009

Blind man sees after having a TOOTH implanted into his eye

Amazing. The procedure has been around since the 60s. [Link]
When Martin Jones met his wife four years ago, he never imagined that one day he would get to see what she looked like.
The 42-year-old builder was left blind after an accident at work more than a decade ago.
But a remarkable operation - which implants part of his tooth in his eye -  has now pierced his world of darkness.
The procedure, performed fewer than 50 times before in Britain, uses the segment of tooth as a holder for a new lens grafted from his skin.
'The doctors took the bandages off and it was like looking through water and then I saw this figure and it was her,' he said today.
'She's wonderful and lovely. It was unbelievable to see her for the first time.'

More info here. [Link]
The specific surgery is called Osteo-Odonto-Keratoprosthesis and was first pioneered in Italy in 1963. Essentially, a tooth and a small portion of the jaw is removed from the patient. A small hole is drilled into the tooth and a lens is attached inside. The tooth construct is implanted in the cheek to allow it develop a blood supply, and then later is implanted into the eye. Despite how unwieldy this procedure seems, it has a shockingly high success rate over time. In this survey of 181 patients, 85% retained functional use of their eye after 18 years, with approximately 55% retaining the best postoperative functionality.

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