An eye patch may be used when the eye has been injured. It gives protection from further injury and keeps the eyelid closed. This helps with healing after an injury to the cornea. The cornea is the clear outer layer on the front of the eye.
There are different types of patches. One type is stiff and held on with an elastic band. The other kind is made of gauze and is taped in place. Patches should fit snugly against the eye. They should be snug enough to prevent the eye from opening.