Terri Rupp, president of the National Federation of the Blind of Nevada, is training for the Rock ‘n’ Roll Marathon on the Strip. Achilles International assists visually impaired runners in their …

Terri Rupp, president of the National Federation of the Blind of Nevada, is training for the Rock ‘n’ Roll Marathon on the Strip. Achilles International assists visually impaired runners in their efforts to compete. (John Sterling/Las Vegas chapter, Achilles International)