Retained Eye Caps ----------------- Retained eye caps are often a manifestation of an abnormal shed. The eye caps represent the outermost cellular layers of the corneas (the transparent portions of the eyes), which are supposed to be shed each time the outermost layers of the skin are shed. The retained caps must first be softened by repeated application of a suitable eye ointment. Next, an experienced veterinarian should attempt to carefully remove the corneal remnants. This procedure should not be attempted by an inexperienced hobbyist.