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.
When a retinal vein is blocked, it cannot drain blood from the retina. This leads to hemorrhages (bleeding) and leakage of fluid from the blocked blood vessels. There are two types of retinal vein occlusion: Central retinal vein occlusion (CRVO) is the blockage of the main retinal vein. Branch retinal vein occlusion (BRVO) is the blockage of one of the smaller branch veins. Nerve cells need a constant supply of blood to deliver oxygen and nutrients and blood vessels provide this supply.