| Business | Phone |
| 88 Optical 4300 Steeles Ave E, Markham L3R 0Y5 | (905) 948-0177 |
| American Optical 90a Centurian Dr, Markham L3R 8C4 | (905) 479-4554 |
| Good-Eyes Optical Inc 4300 Steeles Ave E, Markham L3R 0Y5 | (905) 943-9888 |
| Jupiter & Leo Trading Inc 231 Amber St, Markham L3R 3J7 | (905) 943-9933 |
| P & C Optical Inc 100 Steelcase Rd E, Markham L3R 1E8 | (905) 948-1828 |
| Regency Enterprise 7300 Warden Ave, Markham L3R 9Z6 | (905) 513-1669 |
| Shorney's Optical 5000 Highway 7, Markham L3R 4M9 | (905) 946-1892 |
| Three Owls Optics Inc 3255 Highway 7, Markham L3R 3P9 | (905) 474-0742 |
| Wales Optical Co 3636 Steeles Ave E, Markham L3R 1K9 | (905) 305-1188 |