(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 colored stool can be caused by eating foods that are tainted with bacteria, most commonly e-coli. Normally the food and waste will pass quickly, at times just a couple hours after consuming the bad food. It is likely that your bowel movements will contain light green stool or dark green stool.