Guidelines: Visual

The visual accessibility guidelines solve for: low vision, loss of peripheral vision, blindness, color blindness, eye strain, light sensitivity, loss of central vision, blurry vision, blindspots, lack of depth perception. Solutions to the guidelines include: haptic feedback, audio feedback, and visual enhancements.

• VIS 1.1Allow zooming in closer to and away from details.
• VIS 1.2Allow enlarging and reducing the size of intractable objects and text.
• VIS 1.3Add indicators in central vision for important objects in peripheral vision.
  Note: Users with loss of peripheral vision objects beyond their central field of vision may go unnoticed unless prompted to turn towards them, either through visual cues( arrows) or aural cues.
• VIS 1.4Allow for the customization of font, font size, font background, font color and the distance at which to display text.
  Note: Some fonts work better for low vision and others solve for dyslexia. Larger text size reduces eye strain. Contrast between font color and background color for font can make a difference for clarity of text. Text displayed at a distance can appear blurry to a user with low vision.
• VIS 1.5Allow for adjustment of contrast and brightness.
• VIS 1.6Allow edge enhancements and depth measurements.
• VIS 1.7Allow for filtering colors or add texture and symbols to highlight distinction between elements when necessary.
  Note: Users with color blindness cannot discern some or all colors. It is important to ensure no important information is conveyed only with color.
• VIS 1.8Add audio descriptions that can identify objects or elements audibly.
• VIS 1.9Use spatial audio and haptics to orient users towards the objects.
• VIS 1.10Add text to speech to describe written elements.
• VIS 1.11Allow muting of non-critical content.