Cataracts, which causes cloudy areas in the eye that hinder sight, is a common age-related condition in both people and animals.
Three elderly king penguins have been fitted with custom-made eye lenses during surgery to remove cataracts in what is believed to be a world-first procedure to improve their sight, according to a Singapore zoo.
"We noticed the cloudiness in their and moving about like they were having difficulty seeing things in front of them," said veterinarian Ellen Rasidi, explaining the decision to remove the cataracts. "As a larger species, the king penguins have eyes large and stable enough to hold the custom lenses in place so we decided to pursue this world-first procedure to further improve their vision above removing the cataract," she said.
King penguins are the second-largest species of penguin and are found in the Southern Ocean and sub-Antarctic.
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