(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.
Your poop may be green if you eat a lot of green vegetables, such as spinach and broccoli, because these foods contain large amounts of the green pigment chlorophyll.t may be alarming to see green poop in your toilet bowl, but it isn't necessarily a cause for concern. The color of your stools is often a reflection of what you eat. Black stools, for example, can result from eating blueberries or taking medications that contain bismuth subsalicylate, such as Pepto-Bismol.