To provide an optical film characterized by homogeneously mixing a polymethyl methacrylate (PMMA) in a solvent by a solvent molding technique, forming a wet film, and then heating the wet film to form the optical film, and to provide a method for producing the same.

This optical film is characterized by selecting one of PMMA, functional group-substituted PMMA and functional group-substituted PMMA blends, and a solvent corresponding to one of the PMMA, the functional group-substituted PMMA and the functional group-substituted PMMA blends, uniformly mixing the materials in an arbitrary ratio in response to a necessary specification in the solvent to form a mixture solution, and then drying the mixture solution to form the optical film.