Vision is a pretty amazing thing – except for when it isn’t. Over 75 per cent of Americans are estimated to wear optical correction in the form of spectacles or contact lenses. And it’s thought that even more should be wearing some form of optical correction but instead wear some form of denial to address refractive error.
Refractive error occurs when the eye cannot properly focus which, of course, results in blurred vision. The 4 most common types of refractive error are myopia, presbyopia, hyperopia, and astigmatism.