Dunham swung through the ball, hit it squarely and it landed softly on the green, taking one hop before nestling into the bottom of the cup.
Dunham's group erupted into a cacophony of cheers and high-fives.
The World War II vet's first reaction?
"I thought they were kidding me," Dunham said. "I told them, 'You guys better not be pulling my leg."'
The retired Honeywell manager began losing his vision about 10 years ago, but has been in the VA program for only three weeks.