Eyepatch

An eyepatch (also spelled eye patch) is a device worn over the eye, generally used to protect an eye that is injured or missing.

In an alternate timeline where Britain was a fascist republic state, that timeline's version of Alastair Lethbridge-Stewart wore an eye patch. (TV: Inferno)

Amy Pond likened the Eye Drive worn by Madame Kovarian to an eyepatch. (TV: The Almost People)