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Wolverine Sees Brighter Future After Groundbreaking Eye Surgery
Edward, a 2-year-old wolverine, received the first custom intraocular lens implant in his species to restore vision after cataract surgery, improving his quality of life, zoo officials said.
- At the San Francisco Zoo, a 2-year-old wolverine named Edward became the first to receive a custom-made artificial intraocular lens after cloudiness in his right eye led to cataract surgery among roughly 30 wolverines in U.S. zoos.
- Dr. Nick Dannemiller said cataracts are a clouding of the lens of the eye that typically develop in much older animals, making Edward's case atypical.
- Drawing on prior work with birds, Murphy and Mutti, veterinary vision specialists, collaborated to design and fit a custom lens for Edward, addressing postoperative far-sightedness concerns.
- Staff reported vision improvements after the surgery, noting Edward was more willing to present his right side during training; he now receives eye drops three times a day, lives with companion Molly, and is expected to have a normal life.
- Zoo staff called an ophthalmologist to evaluate Edward, the taco seasoning–loving wolverine, and wolverines' lifespan in human care allows long-term monitoring and follow-up.
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