If the entire eye is removed, an ocular implant and prosthesis prevent the tissues in the eye socket from growing to fill the empty space.

Source: https://www.blackpoolgazette.co.uk/news/people/thornton-cleveleys-man-became-an-artificial-eye-technician-after-watching-late-mother-have-one-removed-4251974

People who cannot receive a prosthesis, many things.

Source: https://www.counterpunch.org/2023/03/31/the-state-of-cuba-us-relations-an-interview-with-dr-jose-ramon-cabanas/

When John Amanam’s brother lost a limb due to an accident, his family ordered a prosthesis from abroad, but to his surprise upon its arrival, it did not match his skin color.

Source: https://afro.com/transforming-lives-with-hyper-realistic-prostheses-the-story-of-john-amanam-the-first-nigerian-prosthetic-artist/