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.
There are various types of cataracts. The most common type is a nuclear sclerotic cataract which is when the central part of the human lens gets denser and becomes cloudy or opaque. A snowflake type cataract is not very common and is associated with diabetes. It is derived from the fact that the lens looks like white opacities reminiscent of snowflakes. Snowflake cataracts can also occur in non-diabetics too, although very uncommonly. There is no known cause of these types of cataracts.