FTN â **** the Navy. Commonly used as graffiti in hard to find places as a type of game. While there are no clear objectives, the result of upsetting officers constitutes a type of victory.
Bifocals, are eyeglasses with two distinct optical powers, Bifocals are commonly prescribed to people with presbyopia who also require a correction for myopia, hyperopia, and/or astigmatism.
bifocals, page 16 Â© W. F. Long, 1992A double segment is has an additional add at the top of the lens. It is anoccupational lens for painters, pilots, and the like.The top segment may be obtained in any power. The near correction can behad in a bifocal or trifocal.