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.
Cataract surgery is the removal of the natural lens of the eye (also called crystalline lens) that has developed an opacification, which is referred to as a cataract. Manual small incision cataract surgery (MSICS): This technique is an evolution of ECCE (see below) where the entire lens is expressed out of the eye through a self-sealing scleral tunnel wound. 2  An appropriately constructed scleral tunnel is watertight and does not require suturing.