Ch.8 Pros and Cons

1)    Fundamental Approaches to Sensory Aids

There are so many positive things about the fundamental approaches to sensory aids such as they are designed to help magnify impairments. The sensory data detects that the human brain cannot obtain through its own sensory system. The con thing about it is that when it is impaired there will be no useful input of information. Visual information is spatially organized.

2)    Principles of Computer Adaptations for Visual Impairments

Computers that are built into assistive devices with displays display terminals which assist visual impaired individuals. Standard visual computer outputs are not suitable for use by persons who have vision impairments.

3)    Reading Aids for Persons with Visual Impairments

The major issues faced by individuals with visual impairments are access to printed reading materials, orientation and mobility and access to computers including the internet. There are numerous ways to help assist visual impaired individuals: magnification aids, optical aids, nonoptical aids,and electronic aids. With optical aids they are for people who have low vision whereas nonoptical helps enlarge print and electronic aids enhances vision.

4)    Visual Access To the Internet

People who have learning disabilities and dyslexia find it very hard to access complicated Web sites. User Agent is known as software to access Web information . There are two useful sources of information which is useful to assist individuals with disabilities the W3C Web Accessibility Initiative and the Trace Center.

 

5)    Mobility and Orientation Aids For Persons with Visual Impairments

Mobility presents notable problems with visual impairments, and the blind traveler uses many methods to help him or herself stay safe through the environment. A blind person can pick up on smell and other cues to help them. Temperature changes are very important.

6)    Special- Purpose Visual Aids

There are three types of special purpose visual aids devices for self care. This aid is used for household task and voice output would be a great example. Devices for work and school which accesses help with reading, mobility and computers, to be used for how they were designed vision is required and last but not least would be devices for leisure and play.