The term TYPE OF PATCH can refer to three different solutions: EYE, PEA, and IRONON. An EYE patch is a covering used to protect or cover an injured or missing EYE. It is typically made of cloth or leather and is held in place with an elastic band around the head. A PEA patch is a type of patchwork quilt made from small pieces of fabric sewn together in a pattern. Iron-on patches are patches that are applied to fabric using heat. They are usually made of a thin plastic material and have an adhesive backing.