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An eyepatch is a small patch that is worn in front of one eye. It may be a cloth patch attached around the head by an elastic band or by a string, or an adhesive bandage. It is often worn by people to cover a lost or injured eye, but it also has a therapeutic use in children for the treatment of amblyopia. (See orthoptics and vision therapy.)


In the years before advanced medicine and surgery, eyepatches were common. They were particularly prevalent among members of dangerous occupations, such as sailors and blacksmiths. David Bowie made it a fashion statement in 1972. Today, with prosthetic eyes increasingly accessible, eyepatches are no longer common.


Eye patches may have had a more practical purpose for sailors and pilots. Sailors (stereotyped by the eye-patch-wearing pirate) who often went above and below deck, used eye patches to have one eye adjusted for the top deck and the other eye already adjusted for the darkness when suddenly going below deck. The strong sunlight while above deck on an oceangoing vessel could require minutes of adjustment to the dim lighting below deck. With virtually no light sources below deck, sailors would have to rely heavily upon their eyes to adjust. In the critical moments of modifying the rigging, navigating, and especially during battle, those minutes were too precious. A simple switch of the patch from one eye to the other saved time and was more convenient than being temporarily blinded when going between decks. This was deemed plausible on the January 17, 2007 episode of MythBusters.


Similarly, pilots at one time would also do the same, when flying at night over brightly lit cities, so that one eye could look out, and the other would be adjusted for the dim lighting of the cockpit to read unlit instruments and maps. When flashlights with red bulbs, backlit instruments, and other modern instruments came along, that no longer was necessary, just as boats and ships evolving into being well lit made eye patches a thing of the past.

Some military pilots have worn a lead-lined or gold-lined eyepatch, to protect against blindness in both eyes, in the event of a nuclear blast or laser weapon attack.


Eye patching is used in management of children at risk of amblyopia (lazy eye), especially strabismic or anisometropic amblyopia. These conditions can cause visual suppression of the dissimilar images by the brain, resulting in blindness in an otherwise functional eye. By patching the good eye, the amblyopic eye is forced to function, causing vision to be retained.

Famous eyepatch-wearers

Fictional eyepatch-wearers


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