He got closer than you might expect.

There's a guy on YouTube who makes things from scratch — he actually gathers the raw materials and figures out how to produce stuff without modern manufacturing processes. His name is Andy George and he runs a channel called How To Make Everything.

He recently decided to try eyeglasses.

From the video description: "With some guidance from Dr. Lewis Dartnell, I collected sand, limestone, and hardwood ashes to melt down into the glass. Then I figured out how to grind the lenses down to the correct curvature to match my prescription. I also made the frames for them out of a tree."

Right.

He didn't quite succeed in making functioning eyeglasses, but he got closer than you might expect.

Take a look:

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