Dr. Yang is a licensed Optometry in CA. Medical degree obtained from UC Berkeley School of Optometry. Currently practices at Cupertino Optometry (Cupertino Optometry), located at 10680 S De Anza Blvd, Cupertino, CA 95014. Dr. Yang specializes in treating various ocular diseases including managing dry eyes. rigid gas permeable lenses, scleral lenses, and orthokeratology lenses.. In addition to English, Dr. Yang speaks Mandarin and accepts new patients.