what is visual impairment ?how braille is helpful for visually challenged people?
Answers
Honor Society of Nursing (STTI)
Honor Society of Nursing (STTI)
Braille is a language that is used to represent letters, numbers, punctuation marks and even entire words. The pattern of raised bumps or dots called Braille can be read with the fingers by those who are visually impaired or blind. Those who are not visually impaired such as school teachers, parents, and counselors may read Braille with their eyes.
In Grade 1 Braille, every letter of each word is expressed using dots within system cells. In Grade 2 Braille, fewer cell spaces are used to create words. Also, some letters are combined to make words in Grade 2 Braille. In Grade 2 Braille, there are 189 letter contractions and 76 short form words. Using short cuts like this reduces the amount of paper needed for creating books in Braille. Short cuts also make the reading process simpler and less confusing.
Braille can be reproduced using a typewriter, printer, or paper and pencil (slate and stylus). The slate holds the paper and the stylus pushes the paper to create the dots. The dots bulge out on the opposite side. Many visually challenged people use the slate and stylus to take notes at meetings or during class.
A machine called a braillewriter also produces Braille. The braillewriter has a space bar and six keys that are numbered to correspond with the six dots of a Braille cell. In addition, software programs are now available to let those who use Braille save their work and edit it at a later time.