A kind of optical medical that suitable what attaches what skin surface covers material, includes flexible illuminating part and overlay film. What pliability illuminating part is arranged in overlay film. Overlay film includes light removing layer and diffusing structure, and what light removing layer is arranged in diffusing structure.一種適於貼附於肌膚表面的光學醫療覆材,包含可撓性發光件和覆膜。覆膜設置於可撓性發光件。覆膜包含光取出層和散射結構,且散射結構設置於光取出層。