(June 2010) (Learn how and when to remove this template message) Base curve radius, or simply base curve, abbreviated BCR or BC, is the measure of one important parameter of a lens in optometry. On a spectacle lens, it is the flatter curvature of the front surface.
Green stool â when your feces look green â is usually the result of something you ate, such as spinach. Certain medications or iron supplements can also cause green stool. Newborns pass a dark green stool called meconium, and breast-fed infants often produce yellow-green stools. In older children and adults, green stool is uncommon. It's rarely cause for concern. Causes.
If you have a green stool, ask yourself if youâve eaten anything with green food dye in it lately. If you have not, recall that green is a combination of yellow and blue. Copper green poop can be generated by the regular consumption, over a few days, of Metamucil and blue Gatorade. Donât ask me how I know that.