Why This Fish Had Surgery to Get a Glass Eye ... and Seems Much Happier Now

This rockfish now fits in better with the other fish in the tank.

The rockfish underwent special surgery to have a glass eye implanted.

The head veterinarian at the Vancouver Aquarium, Dr. Martin Haulena, affixed a special taxidermy eye to the fish while the animal was put under anesthesia.

In a video of the procedure, Haulena said the surgery is more than just cosmetic.

"We do find when fish are blind from one eye and has no visible eye, other fish recognize that and will kind of attack from that side," said Haulena.

The fish seems to be adapting nicely, according to Haulena.

“The fish is doing really well," he said. "He is highly visible in the habitat and using his environment as would be expected.”