Vision Impairments

Blindness

  • Users often listen to pages using a screen reader.
  • Barrier to access: content often isn’t read out correctly.

Low Vision

  • Users often set their own font and background colors.
  • Users often magnify the screen to make it more readable.
  • Barrier to access: content doesn’t resize correctly.
  • Barrier to access: insufficient contrast between text and background.

Color Blindness

  • Reds and greens often indistinguishable.

Assistive Technologies

  • Screen Reader, e.g. JAWS, WindowEyes, NVDA
  • Braille Reader
  • Screen Magnifier
  • Voice recognition, e.g. Dragon NaturallySpeaking

Example