(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.
Some people who have a high quantity of greens in their diet may pass poop that has a green color too. Having green poop isn't usually a cause for concern. It is important for people to keep an eye on both the color and the texture of their stool, however. Anyone who is concerned with the color of their stool should discuss it with their doctor.