93% of Donated Eyeglasses Are Not Usable
(p. D6) Giving used eyeglasses to poor countries may please the donors, but it is not worth the high delivery costs, a new study has concluded, and a $10 donation would do more good.
The study, led by Australian scientists and published in March in Optometry and Vision Science, found that only 7 percent of a test sample of 275 donated spectacles were usable. That raised the delivery cost to over $20 per usable pair. A simple eye exam and a set of ready-made glasses from China can be provided for just $10, the authors said.
For the full story, see:
(Note: the online version of the article has the date April 23, 2012.)
(Note: a more extended analysis of this example appears in an online article by Virginia Postrel. I am grateful for Dale Eesley for sending me a link to Postrel's article.)