If the interface is for impaired vision, firstly consider whether vision is the best medium in which to work. It may not always be. (rather than making a clock more visible, how about a talking clock?)
If for people with poor vision, remember BBB
Make it
Big... increase size of characters, wherever possible. This may be limited by the number of words that need to be displayed.
Bright... Good illumination. Really good illumination on printed material can deliver an improvement in print legibility of two or three sizes.
Bold... High contrast, with no fussy confusing backgrounds or unecessary images. No coloured print on a coloured ground. White print on black is often more legible than the conventional reverse.
That would generally be fine for ordinary vision too, except if the print has to be so large that more pages have to be used on the booklet/screen etc.
Some Visually Impaired or blind people tend to believe that losing vision means gaining power in the other besisdes taste.
Zero. Marijuana will not kill you in its own right but it can kill if you drive impaired or make other impaired decisions.
It requires vision and the ability to communicate that vision to other people.
No, the only reason that would have to have a visit to the doctor is if your vision is impaired, other than that, contrary to many beliefs it is a minor injury.
It should only be done if your vision is so impaired that there's no other choice. It is a relatively safe procedure, but it's not 100 % safe (no procedure is).
I have blue eyes and I have 20/20 vision.
Driving a vehicle while impaired is not only against the law, it is a danger for the driver and his passengers as well as other innocent people driving on the same road. When you are impaired your response time to react to danger is severely slowed you brain cannot process at normal speed. Your impaired vision can cause you to go left of center into the path of oncoming traffic and innocent drivers or you may hit curbs, parked vehicles or pedestrians.
include facial nerve palsy, impaired taste and smell, blindness (or other eye problems such as double vision, visual field defects, blurry vision, dry/sore eyes), or speech problems (impaired swallowing or hoarseness).
Blind or Visually impaired people are no diffrent than sighted people other than the fact that they have less vision. We are normal people with slight disabilities. We have to adapt to the world around us to fit our personal visual needs unlike sighted people.
World Vision cares for people who can't get water, food and other things too.
Steve Jobs had the vision of the Macintosh, but there are several people who were instrumental in bringing the Mac to fruition. Jef Raskin was a user interface/experience expert, and is widely considered to be the 'Father' of the Macintosh. Other key contributors were Andy Hertzfeld, Bill Atkinson, and Burrell Smith.
what is marketing and explain interface with other functional areas