1. Refraction Optical Lab 609 Summit St, Marshalltown, IA 50158 Coordinate: 42.05314,-92.92314 Phone: (406) 241-9460
2. McFarland Eye Center 312 E Main St, Marshalltown, IA 50158 Coordinate: 42.04972,-92.90669 Phone: (641) 753-5585