Quote:
Originally Posted by avshadler
Hand held reading distance for ten point type is slightly less for young -- high school graduate -- women that for hs grad. young men -- possibly because the women have arms that are about 10-12% shorter.
and larger size to accommodate the great majority of book readers.
|
Nothing to do with arm length!
Also Ethnic background, culture, writing system?
These seem like pretty poor & biased studies.
Any system is going to have to accommodate glasses unless it can separately do all the kinds of vision correction each eye needs, as even without astigmatism etc a long sighted or short sighted or person needing glasses for reading AND distance may need a different lens for each eye.
Too many products seem designed by US English speaking "white American males" for English speaking young white American males.
Or for an "average" (few people are "average") person rather than say 95% of people. Even stupid stuff like Men's shoes no smaller than UK 7, or Women's shoes no larger than UK 7.
Or designed for "average" size finger tips, finger length and grip size. Average is meaningless for human physical characteristics. The variation is enormous.