20-09-2017, 09:24 AM
In today's world communication has become so easy because of the integration of communication technologies with the Internet. However, people with visual problems find it very difficult to use this technology due to the fact that their use requires a visual perception. Although many new developments have been implemented to help them use computers efficiently no naive user who is visually challenged can use this technology as efficiently as a normal naive user can do that is different from normal users who require some practice to use available technologies.