Eye chart number). The denominator indicates the distance in feet at which a person with normal vision could stand to correctly identify the same symbols identified by the person tested. For example, a visual acuity of 20/20 is considered normal. Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision. There is often also a need to test a subject's vision at near or occupational tasks (such as reading or computer use). For these situations, a Rosenbaum
Work Is a Four-Letter Word Work Is a Four-Letter Word Work Is a Four-Letter Word (also known as Work Is a 4-Letter Word) is a 1968 British satirical comedy film starring David Warner and Cilla Black, in her only acting role in a cinematic film. The film, which directed by Peter Hall, was not well received by critics even though it was based on the award-winning play "Eh?". It also marked the acting debut of Elizabeth Spriggs. Everyone is employed by the ultra-modern DICE Corporation but Valentine Brose (Warner) would rather stay at home to tend his psychedelic mushrooms. However, his bedroom is too small