It keeps you from blinking, say Ohio State University
researchers. In a recent study, they asked 10 students to squint
while looking at a computer monitor for 70 seconds. The result:
Even a slight amount of squinting cut blinking rates by half
(from 15 blinks a minute to 7.5).
Blinking rewets the eye; doing less of it can cause eyestrain,
say the researchers, and lead to a condition called dry eye, in
which eyes are itchy and tired. To minimize your office’s
squint-inducing glare, position your monitor so that any windows
are to the side of it (not behind or in front), and use
lower-watt bulbs in your lamps.