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Although the definition of learning disabilities may include reading disabilities, dyslexia, problems with spoken language, writing, and reasoning ability, Public Law 89–522 states that NLS materials will be loans to readers that have a "reading disability resulting from organic dysfunction," and requires certification from a medical doctor. [9]
Visually impaired computer users who cannot use a standard computer monitor can use it to read text output. Deafblind computer users may also use refreshable braille displays. Speech synthesizers are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances.
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]
Braille technology is assistive technology which allows blind or visually impaired people to read, write, or manipulate braille electronically. [1] This technology allows users to do common tasks such as writing, browsing the Internet, typing in Braille and printing in text, engaging in chat, downloading files and music, using electronic mail, burning music, and reading documents.
Braille (/ ˈ b r eɪ l / BRAYL, French:) is a tactile writing system used by people who are visually impaired.It can be read either on embossed paper or by using refreshable braille displays that connect to computers and smartphone devices.
A screen reader is a form of assistive technology (AT) [1] that renders text and image content as speech or braille output. Screen readers are essential to people who are blind, [2] and are useful to people who are visually impaired, [2] illiterate, or have a learning disability. [3]
Job Access With Speech (JAWS) is a computer screen reader program for Microsoft Windows that allows blind and visually impaired users to read the screen either with a text-to-speech output or by a refreshable Braille display. JAWS is produced by the Blind and Low Vision Group of Freedom Scientific.
A wide array of technology products is available to assist with visual impairment. These include screen magnification for monitors, screen-reading software for computers and mobile devices, mouse-over speech synthesis for browsing, braille displays, braille printers, braille cameras, and voice-activated phones and tablets.
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