In addition, the survey revealed that Americans place comfort (65 percent) and affordability (54 percent) before UV protection (44 percent) when purchasing sunglasses.Parents are more likely to wear shades always or often (56 percent) than their children (29 percent).Many adults who rarely or never wear sunglasses (25 percent) report that they skip UV eye protection because they don't own prescription sunglasses (41 percent).Millennials are least likely to protect their vision: 55 percent of people in their 20s never, rarely or only sometimes wear sunglasses.