Against the opposition of the current President and leaders of the Democratic Party, they have fought to establish, and now to expand, the D.C. Opportunity Scholarship Program, through which thousands of low-income children have been able to attend a school of their choice and receive a quality education.
coronary occlusion. noun. Medical Definition of coronary occlusion. : the partial or complete blocking (as by a thrombus, by spasm, or by sclerosis) of a coronary artery.
Central retinal vein occlusion is a blockage of the small blood vessels that carry blood away from the retina, located in the back of the eye. Arteries carry oxygen-rich blood from the heart to various body parts.Veins return oxygen-depleted blood back to the heart. The retina has one major artery and one major vein.he vein is called the central retinal vein. Central retinal vein occlusion (CRVO) is a blockage of this vein that causes the vein to leak blood and excess fluid into the retina. This fluid often collects in the area of the retina responsible for central vision called the macula.