The 10th Street Eyecare Center, located at 2601 10th St. in Great Bend, recently implemented a new cutting-edge testing technology called N3 to help patients identify whether they need corrective lenses for extended use of digital screens. N3 is a unique testing experience, where the patient wears a virtual reality-style headset to complete a series of tests while the headset tracks eye movement and the eye’s ability to focus at different distances.