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The Healthy Programmer
book

The Healthy Programmer

by Joe Kutner
June 2013
Intermediate to advanced
254 pages
6h 37m
English
Pragmatic Bookshelf
Content preview from The Healthy Programmer

Avoiding Computer Vision Syndrome

In 1779 Benjamin Franklin was on a diplomatic mission to France when he received a letter from an optician in Paris—his new glasses had been delayed. The optician explained that the delay was caused by the lens having broken three times during cutting, which suggested that Franklin was ordering something unusual. Indeed, most historians agree that this correspondence is the earliest evidence of a famous Franklin invention: bifocals.

In Franklin’s time—and up until recently—bifocals solved the essential problem of sight: our eyes focus differently when looking near and far. But in the last century we’ve developed a new problem: middle-sightedness. The ideal distance for computer viewing is 20 to 40 inches (51 ...

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Publisher Resources

ISBN: 9781941222553Errata Page