(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.
Donât panic. Itâs not cancer. Bowel movements actually start out as green. There are two chief causes of green poop: green foods, and quick transit time of the stools through the large intestine. Leafy green vegetables, cucumbers, green food coloring and iron supplements can turn poop green.