Spring is the time of year when the department gets the most calls regarding supposedly abandoned or orphaned animals. As biologists have learned, usually these animals arenât orphaned at all. Often, overeager individuals ârescueâ the animal while the mother is foraging. The walrus pup before transport to Sea World.
Nuclear Sclerotic Cataracts. This is the most common type of age-related cataract, caused primarily by the hardening and yellowing of the lens over time. Nuclear refers to the gradual clouding of the central portion of the lens, called the nucleus; sclerotic refers to the hardening, or sclerosis, of the lens nucleus.
A: The cloudiness commonly seen in the eyes of older dogs is usually not a cataract, even though many pet owners assume it is. It's called nuclear sclerosis, and it generally doesn't affect vision. That doesn't mean your dog does not have cataracts, however, and it's also very possible there's another problem, as well, given your observations. First, let's start with a little information about cataracts. In the eye, the lens helps focus light on the retina. A cataract is any alteration in the lens that causes a loss of transparency and the scattering of light. The loss of transparency can range from hardly noticeable to completely opaque.