1. Glasses made their first appearance
between 1285 and 1289, and were traditionally made out of quartz set into bone,
metal, or leather. These glasses did not have arms, so the glasses would always
fall off of your nose.
2. In some African countries, glasses cost
more than three months’ salary.
3. Over four million pairs of glasses are
discarded in the U.S. every single year.
4. In the past, many sailors believed that
wearing gold earrings would improve your vision.
5. Sunglasses in 12th century China were
created out of flat panes of smoky quartz, and were used by judges to hide
their expressions while interrogating witnesses.
6. the most common sport for eye injuries
to occur is baseball.
7. Insect eyes are often divided into
multiple smaller eyes.
8. Squids have the biggest eyes in the
world.
9. Babies younger than three months do not
produce tears when they cry.
10. In the first hours after a baby is born
they see the world upside down.
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