Reduced sight.
WHAT AFFECTS PEOPLE
Reduced acuity Reduced contrast sensitivity Restricted field of vision Light sensitivity
WHAT TO DO
Ensure strong contrast Allow text to be enlarged without breaking the layout Avoid conveying information by fine detail Provide adequate spacing
THE ENLARGEMENT POINT
Many people enlarge text by default.
A layout that breaks when text grows fails for them.
WHAT TO TEST
Increasing text size substantially, and checking nothing is cut off or overlapping.
WHAT TO AVOID
Fixed heights that clip text Text in images Very light font weights Low contrast placeholder and hint text
WHAT ELSE HELPS
Clear focus indicators Large targets Predictable layout
WHAT TO CONSIDER
Whether a dark option would help.
Some people find light text on dark easier, some the opposite.
WHAT TO RESPECT
The system preference, where one is expressed.
WHAT TO CHECK
Reading a page at double the normal text size.
