| Business | Phone |
| Shop Ko Eye Care Ctr 615 S Monroe Ave, Mason City 50401 | (641) 424-3858 |
| Heston & Korthals 1411 4th St Sw, Mason City 50401 | (641) 423-7554 |
| North Iowa Eyecare Pc 520 S Pierce Ave # 114, Mason City 50401 | (641) 424-2030 |
| Mike Korthals Od 1314 4th St Sw 2, Mason City 50401 | (641) 424-0780 |
| Vision World 100 S Federal Ave 402, Mason City 50401 | (641) 423-8163 |
| Wal-Mart Discount Cities 4151 4th St Sw, Mason City 50401 | (641) 423-8431 |
| Michael Heston Family Eyecare 1411 4th St Sw, Mason City 50401 | (641) 423-7555 |