The word Chamomile comes from the Greek meaning ground apple, probably because of its apple-like fragrance. The Romans used Chamomile for incense. Roman Chamomile gained its name, not from ancient Rome, but because a 19th century plant collector found some growing on the ruins of the coliseum in Rome.
What Is Perfect Vision? In cases of normal vision, also called perfect vision or 20/20 vision, the eye is able to focus light from objects precisely on the retina at the back of the eye. Refractive errors occur when the eye is unable to properly focus light on the retina.
The First Number: Sphere. Here is a basic lens prescription for someone who is nearsighted. First thing first, OD means right eye. OD is an acronym for a latin phrase that no one cares to remember. The sphere in this case is -1.25 for the right eye, and -1.50 for the left eye. There is an important point to be made. Regardless of if there is a + or - before the sphere number, the rule of thumb is, the higher the number, the worse the eyesight.