Why did pirates used to
wear eye patches?
The cliched image of a pirate with an eye patch seems to owe
more to popular fiction than to historical records. However, there
is a popular theory that wearing an eye patch was common among
seafarers. YOU KNOW WHY? Because it allowed one eye to constantly
be accustomed to the dark- useful if someone needed to go below
deck and see quickly without waiting for eye to adjust.
This theory is plausible since it can take up to 25minutes for eyes to completely adjust to
the dark.
Now I know the fact: we need 25mins to let our eyes adjust to
dark...so LONG huhhhh...
Source: How it works Book of Amazing Answers to Curious
Questions