According to the U.S. Centers for Disease Control and Prevention, although approximately 61 million adults are considered to be at risk of losing their vision, only half of them have seen an eye doctor within the past year. Most people know that...
The term stroke refers to a sudden decrease in blood flow to an area of the brain. Strokes can be either hemorrhagic, caused by bleeding from one of the blood vessels, or ischemic, caused by blockage of a blood vessel supplying the brain....
Nystagmus, a condition in which the eye has rhythmic and involuntary movement or oscillation, is often caused by an underlying neurological or ocular disorder. Congenital, or infantile, nystagmus will appear in the first few months of life and...
Genetic diseases are those that are passed on from parent to child through genes that carry the codes for each specific trait. Many of the diseases and disorders that affect the eyes have genetic factors. Some diseases are linked to a single gene...
Like every organ in your body, your eyes need good blood flow to bring oxygen and nutrients to nourish their tissues and to carry away waste products. High cholesterol deposits can block the blood vessels that feed your eyes and serious medical...
The internal carotid artery provides blood supply to most of the brain's cortex on one side, including the frontal, parietal and temporal lobes. Only the posterior parts of the brain are supplied by different arteries. The internal carotid divides...
An abnormally high level of cholesterol can make your arteries harden, a condition called atherosclerosis. The arteries usually affected by this condition include the coronary arteries of the heart, the large aorta that carries blood from the...
Rebecca Atkinson published an essay on July 17, 2007, in the Guardian newspaper about her gradual loss of sight from a condition called Leber's congenital amaurosis. Atkinson states, "Suddenly you can smell the world and sense when someone is...
