"That one's Johnny and that one's Sally."

And this is Bryson O'Donnell.

"There's only two boys."

Bryson is four.

"He loves Power Rangers, Superman, Batman," said Tim O’Donnell, Bryson’s dad.

Bryson had no trouble tracking down our microphone. For most of his life, seeing things didn't come easily.

"When he was born, he was diagnosed with Peter’s Anonymy, which is a bad cornea," said Chrissy O’Donnell, Bryson’s mom.

Bryson had a corneal transplant when he was 3-months-old. Things were good for a year, then his body started to reject it.

"Infants have a very keen immune system. They recognize the tissue as being foreign and they just spit them out and reject it," said Dr. James Aquavella.

At the University of Rochester Medical Center along with a colleague in Boston, they created an artificial cornea made from plastic.

"In this piece of plastic we call it kerative prosthesis, we incorporate all the power to be able to bend light rays and focus it on the back of the eyeball," Dr. Aquavella said.

The plastic implant is the size of a contact lens. It's sewn into the patient's eyeball with a piece of donor tissue.

"We just use it more or less as fodder of tissue and it gives us something that heals and we can use it to attach the eye," Dr. Aquavella said.

About thirty children in the world have received this artificial cornea. Bryson is one of them. He came here from Pittsburgh for the procedure.

"You see them when they toddle and they grab on to their mother's leg. And I mean that's, they couldn't see it before, so that's the great thing," Dr. Aquavella said.

"He is a miracle. Our pastor calls him a miracle boy," said Tim O’Donnell.

"He's seeing colors and he can see all of us," Chrissy O’Donnell said.