Assertion: eye chart's letter | /r/HasProperty | legible
Facets:
value: equally
type: DEGREE
value: at various sizes
type: OTHER
Source sentences:
text: The logMAR chart presents the same number of symbols on each line, uses a typeface with letters that are equally legible at various sizes, and by varying the symbol size logarithmically, it is easier to use at nonstandard distances.
text: Finally, the letters used are equally legibility and each line is equally difficult to read.