Visual impairment not only results in impaired quality of life with huge personal costs,3but also in significant direct and indirect economic costs to the community.4 It is estimated that for each dollar spent on the prevention of vision loss and eye care, there is a $5 return to the ...
(if, of course, you like shopping on Amazon); As an Amazon Associate I earn from qualifying purchases (I get a small percentage of every dollar spent while someone is following my referral links), and every month I get a gift certificate that allows me to buy a few books (or, if ...