CHICAGO (CBS) — A 100-year-old eye doctor is being honored for his work to make sure patients can see the world around them.

Dr. Daniel Nast was just awarded a lifetime of distinguished service honor by the American Optometric Association.

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The suburban doctor had a private practice in Melrose Park for more than 50 years, and he’s still on the job at least twice a week in both Northbrook and Gurnee.

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He prides himself on keeping up with the latest eye-related treatments.

“I enjoy doing it. I enjoy helping people,” he said. “There’s a certain satisfaction I get out of seeing a person enjoy reading where they didn’t enjoy it before.”

Nast is also a World War II veteran. He tells a story about playing cards with the people credited with developing the atomic bomb

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That’s not his only brush with history. At 16, Nast became an Eagle Scout, and President Franklin Delano Roosevelt pinned on his badge.