(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.
As digested matter and waste move through the colon it will turn from green to yellow and eventually to brown â which is the normal color for a stool. So, green poop can mean your stool has moved through your system too quickly for the bile to change it from green to brown. In medical circles this is often referred to as ârapid transit timeâ. Thatâs why diarrhea can look green because it goes through your digestive far more quickly than a normal stool.