With physical damage or disease suffered by an organism, healing involves the repair of living tissue, organs and the biological system as a whole and resumption of normal functioning. It is the process by which the cells in the body regenerate and repair to reduce the size of a damaged or necrotic area and replace it with new living tissue. The replacement can happen in two ways: by regeneration in which the necrotic cells are replaced by new cells that form similar tissue as was originally there; or by repair in which injured tissue is replaced with scar tissue. Most organs will heal using a mixture of both mechanisms.
Look, after mounting how do you expect it can regenerate, one thing if the ommatidium is bare i.e. with out inner hair, it structure could be distorted, other wise it remain as usual.
Hi, unfortunately I don't have pdf files of these; check any of the following papers; these have a lot of general references on teratology (i.e. Balazuc and Stusak & Stelik)