Bonita, Tsai ODOptometristOptometry Education: Pennsylvania College of OptometryMain Office:905-944-9088 Eye Clinic Markham unit 202 8312 McCowan Rd Markham, ON L3P 8E1 Clinic Intersts:myopia control, vision therapy, dry eye therapy, retinal imaging and visual field, glaucoma management, ocular emergencies laser eye surgery consultation.