https://infogram.com/about-163m-iphone-users-are-estimated-to-use-some-form-of-vision-correction-1gl94pk05zj023v
"About 163M iPhone users are estimated to use some form of vision correction" by devsdca - Infogram
2012 RJI Mobile Media News Consumption Survey/Vision Council of AmericaDescription - BigFONT.net