Louis Braille, born February 4, 1809, was blinded at age four as the result of an accident in his father’s shop. Nevertheless, he became an accomplished organist and cellist and won a scholarship in 1819 to attend the National Institute for Blind Youth in Paris. At age 15, Louis witnessed a demonstration there by Charles Barbier, a soldier who had invented ‘night writing,’ a system of letters embossed on cardboard for silent communication along trenches. While Barbier’s system was too complex to be practical, Braille simplified and adapted it to a six-dot code representing letters that enabled people with impaired vision to not only read but also write for themselves. In 1827, the first Braille book was published, but Braille himself died of tuberculosis at age 43–before his system gained widespread acceptance.
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Having lost his sight at the age of three following an accident, Braille went on to attend the National Institute for Blind Youth in Paris.
Braille (Photo credit: Wikipedia)
While there, he began developing a system of raised dots representing letters to facilitate reading and writing among the visually impaired. This evolved into Braille, a writing system for the blind, which was later extended to include notations for mathematics and music. Braille’s invention was inspired by another writing system designed for what purpose? More… Discuss
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Tagged 3D printing, blindness, Braille, Christmas, Handicapped, iphone, Louis Braille, Massachusetts, National Institute for Blind Youth, Newton, Regional Academy, Robin Young, Student, Visual impairment, writing system
People with color blindness are not blind in the most common sense of the word; their condition can perhaps be more accurately described as a color vision deficiency. Those who suffer from it tend to see colors in a limited range of hues—most commonly they are unable to distinguish red and green—while a rare few may not see colors at all. The condition is often genetic, but it can also be acquired through eye disease. When did the scientific community first acknowledge color blindness? More… Discuss
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Tagged blindness, Color, Color blindness, color vision deficiency, Conditions and Diseases, Eye Disorders, Health, Online Tools, Web Design and Development
A cataract is an opacity of the lens of the eye, which can cause impaired vision or blindness. Because cataracts are a common result of normal aging, most people over age 60 have cataracts to some degree. In fact, cataract surgery is the most common surgical procedure in the US. One early remedy, developed thousands of years ago, involved using a needle to pierce the eye and push the lens out of the field of vision. In what regions is this dangerous, often blinding, technique still employed? More… Discuss
To be blind is not miserable; not to be able to bear blindness, that is miserable.
John Milton (1608-1674) Discuss