Definition. A fever is a temporary increase in your body temperature, often due to an illness. Having a fever is a sign that something out of the ordinary is going on in your body. For an adult, a fever may be uncomfortable, but usually isn't a cause for concern unless it reaches 103 F (39.4 C) or higher.For infants and toddlers, a slightly elevated temperature may indicate a serious infection. fever is a temporary increase in your body temperature, often due to an illness. Having a fever is a sign that something out of the ordinary is going on in your body.
Cataracts are one of the leading causes of blindness in dogs. By Seattle Times staff. Cataracts are one of the leading causes of blindness in dogs. And like many dogs with cataracts, Bernie has simply adapted, so much so that he is commonly mistaken for a sighted dog.
A cataract is a clouding of the eye's natural lens, which lies behind the iris and the pupil. Cataracts are the most common cause of vision loss in people over age 40 and is the principal cause of blindness in the world. In fact, there are more cases of cataracts worldwide than there are of glaucoma, macular degeneration and diabetic retinopathy combined, according to Prevent Blindness America (PBA).