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Doctor uses tattoos to boost blind patients' confidence

Doctor uses tattoos to boost blind patients' confidence

Tattoos placed on the eyeball are opening up new possibilities for some eye injury patients.

One such procedure, which adds natural-looking color to an eye after injury, was performed live at the New York City Tattoo Convention in June by Dr. Emil Chynn, a surgeon, owner and medical director at Park Avenue Lasek in Manhattan. The goal is to match the tattooed eye with the look of a normal eye, and as a result, boost a patient's self-confidence.

Other surgeons aiming for a similar outcome usually just inject dye into the cornea using a needle and syringe, according to Chynn. While that may improve an eye's appearance, the result could just look like a big blotch of brown or black, for example, he said.

"So it's a very delicate procedure, and we're using the most fine tattoo needle as possible," Dr. Chynn said of his approach in an interview with CNBC.