Following are some common handicaps
many everyday web users have to contend with.
Visual impairment
Disabilities with vision include full blindness, semi-blindness, and color blindness. People
who are fully blind cannot see at all out of either eye; they rely completely on specialized
equipment and software like screen readers to navigate websites. Semi-blindness, on the
other hand, affords the person some vision, either in one eye, or with some debilitating
limitations in both. Depending on the severity, semi-blind people might use assistive technology
like screen readers, or just increase the size of the text in their browser.
Color blindness comes in several forms: red-green, blue-yellow, and monochromacy. There
is a tremendous amount of science and biological terminology behind these variations, but
in essence, red-green color deficiency (the most common) makes it hard to tell the difference
between red and green hues, blue-yellow (much rarer) makes it difficult to discriminate
between blue and yellow, and monochromacy is the inability to see any color. (It is
interesting to note that monochromacy??”pure black and white like an old episode of The
Munsters??”is the rarest type of color impairment.
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