Britain: 1-in-3 wear out-of-date glasses WINDSOR, England, Feb. 29 (UPI) -- A survey conducted by an optical company indicates more than 1-in-3 people in Britain are wearing the wrong prescription glasses or contacts. The survey by LensWay, an online optical store, also found almost half of those who require corrective lenses have experienced eye strain, a problem that is particularly acute in the work place where computer screens and smart phones abound. Ironically, of the 1,146 people surveyed, 69 percent regard perfect vision as being vital for their job, but 42 percent admit to regularly not wearing their corrective lenses. Many cite an out-of-date prescription as their reason; more than one-third of respondents doubted the accuracy of their lenses given the elapsed time between eye tests. "It's quite alarming to see that people aren't sure if their prescription is right," Aaron Magness, a spokesman for LensWay, said in a statement. Life without perfect vision is unthinkable for most of us, so it should be routine for people to regularly check their prescriptions. The survey also found 1.5 million Brits have had an accident this year as a result of outdated corrective lenses.