VARIABLE | ACCOMMODATION PREFERENCE | DESIGN AND PRESENTATION CHOICES |
---|---|---|
LIGHTING | BETTER | Raise Illumination On Reading Surfaces To 100 Cd/M2 Reflected Light. Use Several Small, Low-Intensity Light Sources Instead Of A Single Large One. Diffuse Light. |
GLARE | BETTER | Use Matte Surfaces. |
WORSE | Text Or Print On Glossy Paper. | |
COMPOSITION | BETTER | Stimuli Needing Inspection Should Be Large, Simple, Uncrowded, And In The Central Visual Field. Make Things Conspicuous Through Size, Color, Or Contrast. Place Task-Specific Information On A Constant Depth-Of-Plane. |
WORSE | Busy Backgrounds Or The Need To Discriminate At Close Distances. | |
TEXT | ||
FONT TYPE | BETTER | Sans Serif: • Arial • Helvetica • Century Gothic Serif: • Times • Bookman • Book Antigua |
WORSE | ○ Script Fonts Are Difficult To Read ○ Decorative Fonts Are Difficult To Read |
|
FONT SIZE | BETTER | Minimum 12 Pt Font: Arial • Helvetica • Century Gothic Times • Bookman • Book Antigua |
FONT CASE | BETTER | UPPERCASE DRAWS ATTENTION |
WORSE | BUT SHOULD NOT BE USED FOR LONG BLOCKS OF TEXT | |
CONTRAST | ||
BETTER | Black Text On White Background | |
WHITE TEXT On Black Background | ||
○Try To Achieve 50:1 Contrast (E.G. LCD Screen) | ||
COLOR | BETTER | Warm Colors. (Use Larger Contrast Steps If Short Wavelength Discrimination Needed.) |
WORSE | Signaling Information With Violet-Blue-Green (Difficult To Perceive) | |
MOTION / 3-D | WORSE | Rapidly Changing, Flickering Or Moving Stimuli; Virtual Reality |