Complete absence or impairment of sight. It may be caused by heredity, accident, disease, or deterioration with age.
Education of the blind was begun by Valentin Haüy, who published a book with raised lettering 1784, and founded a school. Aids to the blind include the use of the Braille and Moon alphabets in reading and writing. Guide dogs for the blind were first trained in Germany for soldiers blinded in World War I.
Other aids include are electronic devices that convert printto recognizable mechanical speech; and flashlights.
Lack of sight; SYN. sightlessness, cecity. + prikaži više