Eyepatch

More recent medical texts have often referred to the eye patch as a ``pirates patch'' and writing in the Minnesota Academy of Sciences Journal in 1934, Charles Sheard of the Mayo foundation, pointed out that by ``wearing a patch (The pirate's patch) over one eye, it will keep the covered eye in a state of readiness and adaptation for night vision''. This technique was explored during WWII by institutes such as the United States Navy.

Question: do eye patches help you see in the dark
Answer: yes