a measure of spacing of the strands of a mesh or grid, expressed as the distance between strands for coarse meshes or a number of strands per unit length for fine meshes verb 7.
However, in minority of cases the red blood cells are destroyed due to mechanical damage, external toxins, parasites that enter the cell or immune proteins (complement) that attach to the blood cell and triggers its destruction. This is known as intravascular hemolysis.ore prominent symptoms are seen in cases where there is rapid and massive red blood cell destruction. Signs and symptoms include 1  : Shortness of breath. 2  Easily fatigued. 3  Chest pain. 4  Rapid heart rate. 5  Red to brown or dark yellow color of the urine. 6  Jaundice â yellow discoloration of the skin and eye. 7  Enlarged spleen and/or liver.
Normally, the cornea is avascular, or lacking blood vessels, because it needs to be transparent to allow the passage of light for proper focus and sight. This lack of blood vessels means that the cornea must absorb oxygen from the air, and therefore any process that inhibits this absorption may cause corneal neovascularization. Most commonly, this pathology is caused by contact lens wear, with a greater incidence in prolonged contact lens wearers, considered anything over approximately 10 hours per day.