(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.
Green stool is a condition in which the feces have a green coloring or tint. Green stool may be normal in some cases, such as in breast-fed infants. Green stool can also be caused by taking iron supplements or eating certain foods such as green leafy vegetables.Green stool can also indicate a problem with food digestion due to a disease, disorder or other abnormal process.reen stool may be normal in some cases, such as in breast-fed infants. Green stool can also be caused by taking iron supplements or eating certain foods such as green leafy vegetables.