Posted by: Rebecca Whitham, Communications When 20-year-old fur seal Woody (short for Woodstock) developed a cataract lens in each eye, Seattle Aquarium staff grew concerned that the geriatric animal’s vision difficulties would interfere with her ability to explore her exhibit and engage with the other fur seals. So Seattle Aquarium staff, Woodland Park Zoo vets, and our consulting ophthalmologist Dr. Tom Sullivan (of the Animal Eye Clinic), got together to plan an operation to remove the cataract. But this wouldn’t be an ordinary procedure—in fact, it appears to be the first time that such a procedure has been performed on a Northern fur seal. Pioneering this procedure, the animal health experts faced a particular challenge: because of the unique physiology and anatomy of these marine mammals—mostly related to adaptations to allow for deep diving—anesthesia would need to be kept to as short a time as possible to prevent complications. So this meant both eyes would have to be addresse...