(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.
Blueberries, grapes, and red wine, for instance, can result in dark green-blue stool. Purple (or red and blue) food coloring in drink mixes, grape Kool Aid and soda, frozen ice pops, cake icing, blue Gatorade, packaged fruit snacks, licorice, and grape-flavored Pedialyte can also cause dark or bright green poop.