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.
If you want to use a pair of bifocals to reconfigure your prescription to get computer vision in the top part of your lens and reading vision in the bottom, do the same thing you would do for single vision computer glasses.