Dennis Howard has sailed all over the world, but when an eye disease took away most of his sight a few years ago, he figured his days on the water were over.

Instead, he now he plans to sail around the world alone.

Howard, 62, has only 7 percent of his vision, and is legally blind.

"The way I like to describe it is that, if you cover your right eye, that one is blind completely, and then if you can imagine looking through a small drinking straw with the left, that's what I see," he told CBS News.

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