11.21.02
Crystal clear
Further evidence that New Scientist is one of the best free lunches on the web.
This week the magazine reports that the treatment of short-sightedness in children may well be based on a fallacy. Optometrists routinely undercorrect myopia to encourage the eye not to lengthen. The new study suggests that this tactic not only fails to do this, it causes the eye to lengthen more than full correction would.
Most disturbing, the undercorrection theory is based on a single 1965 study involving just 33 children.
Mind the funding gap.