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.
For example, someone with 20/60 vision can read at 20 feet away what a person with normal vision could read at 60 feet away. In the United States, a score of 20/40 or better is required to drive a car without corrective lenses, vision of 20/200 or worse qualifies an individual as legally blind.