Research has shown that there an estimated 7.9 million people with a visual impairment in Europe. At European Union level, the figure generally used by those involved in campaigning to promote the interests of visually impaired people is 7.4 million (out of a general population of about 385 million). Plus wheelchair bound handicapped of 1,925000.
A total estimate for the overall prevalence of vision impairment in the U.S. vary, depending upon the definition utilized. An estimated 7.6 million persons (age 6 and older) have difficulty seeing words and letters in ordinary newspaper print, even when wearing glasses or contact lenses (Mc Neil, 2001).
Total Market As the estimates of visual impairment are running at a 1.7 % of the population, the total global estimate will be in excess of 160 million people with impaired vision, plus the handicapped wheelchair Bound of 32 Million.