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Blinded by small pox at age one (and losing both eyes), I taught myself to read by using my fingers to trace letters on gravestones.

To compensate for my blindness as a youth, I invented abacus-like counting boards and the modern geoboard in order to do arithmetic and geometry.

Despite this apparent handicap in a visual field, I eventually was elected to the prestigious Lucasian Chair...earlier held by both Newton and Isaac Barrow.

Though not supported professionally by Newton, I spread his ideas (especially on optics) through my lectures and published course materials.

I did little if any new research, focusing instead on my teaching of mathematics, which included lecturing and tutoring students for 8+ hours each day.

One of my former students said that I "did not have the use of [my] eyes, but taught others to use theirs."

Answer: Nicholas Saunderson (1682 - 1739)