He trained the dog himselfSourced
A guide-dog program could not take him.
So he trained his own dog.
John Boyer was born blind and lost his hearing before age ten. After college, he trained his own guide dog because the available program did not accommodate deafblind people. He later developed liblouis, open-source software that converts text into braille.
When a tool was missing,
he learned to make one.
Summary / translation: Unbubly · CC BY-SA 4.0
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John Boyer (software engineer) · Wikimedia contributors
John Boyer (software engineer) ↗
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-01