Braille, Use in Individuals With Visual Impairment

Braille is a tactile code that provides access to a written communication system for people with severe vision impairment or blindness who cannot access print effectively. Braille code is based on a combination of raised dots, and it is read by moving finger pads along lines of raised dots, which represent letters, groups of letters, or words. Louis Braille invented the code in the 1800s at the age of 15 years. He became blind as a result of an accident at the age of 3.

Braille consists of cells of six raised dots arranged in two columns of three dots (see Figure 1). Letters are shown by a combination of these dots (e.g., dot 1 represents the letter “a,” dots 1 and 2 represent the letter ...

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