|Chapter 12 "Gimmicks and Gadgets--Let Technology Help"
Brady evaluates much of the available eyewear and other gadgets which help the monocular
individual. He also offers some tricks for emergency situations.
"Ever get caught in front of a telephone book with no glasses to keep the print
from blurring? Here's an emergency measure I picked up somewhere--and have often been
thankful ever since.
Take a small piece of cardboard or paper--a calling card is fine--and punch a tiny hole in
it with a pin or a bent paper clip (the lead in an automatic lead pencil will also do
nicely). Now place your eye against the hole, hold the small print about six inches from
your eye--and read. What you've got is a lens that operates on the same principle as
Grandfather's pinhole camera. You may not want to read Gone With the Wind this way, but it
works in an emergency." (pg. 83)