(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 is not uncommon and may be the result of too much or too little bile or food moving through the intestines too fast. Diet can also effect stool color. Green vegetables, such as spinach and broccoli can cause green stool, and foods containing green food coloring can yield the same result. Just as often though, other food colors can have the same impact. Purple drinks are a particular culprit, especially in young children. Some dietary supplements, especially iron, can also cause green stool.