Dr. Cheung is a licensed Optometry in ON. Medical degree obtained from University of Waterloo Optometry & Vision Science. Currently practices at Chan Optometry (Chan Optometry), located at 7750 Kennedy Rd, Markham, ON L3R 0A7. Dr. Cheung specializes in diabetic retinopathy, macular degeneration, glaucoma and dry eyes.. In addition to English, Dr. Cheung speaks Cantonese and accepts new patients.