Physical problems
There are a whole range of physical problems that can make using a keyboard or mouse difficult or impossible.
To use the Web, people with motor disabilities affecting the hands or
arms may use a specialized mouse; a keyboard with a layout of keys that
matches their range of hand motion; a pointing device such as a head-mouse,
head-pointer or mouth-stick; voice-recognition software; an eye-gaze system;
or other assistive technologies to access and interact with the information
on Web sites. They may activate commands by typing single keystrokes in
sequence with a head pointer rather than typing simultaneous keystrokes
("chording") to activate commands. They may need more time when
filling out interactive forms on Web sites if they have to concentrate
or maneuver carefully to select each keystroke.
Most of these technologies are slower than normal keyboard and mouse use.
What you can do to help.
- If your web site is designed so they don't have to move to far round the screen to navigate this is easier.
- If you have forms it is helpful if you can tab through them logically.