One in four adults say reading glasses can make someone look ten years older, says a survey conducted by Jacksonville University, FL. The survey evaluates the effect that readers have on perceived age. Worldwide, nearly 1.7 billion people have presbyopia, and the number could jump to 2.1 billion by 2020.The Age Perception Impact Survey, conducted online and with support from Alcon, examined the perceptions and attitudes of aging among the US population between the ages of 38-54, also known as the Generation X population. It surveyed 1,067 adults who live in the continental United States. In addition, there were 50 interviews, which included sharing pictures of individuals with and without readers and asking interviewees to guess their age and personal attributes. Read more.