The answer to that question is twofold 1 Is there a demonstrable difference in visual accuity when the correction is applied . In this case , yes . 2 Can you afford to get glasses ? Ball ' s in your court for this one prescription isn ' t so bad that you can ' t function , but there will be a significant quality of life improvement from getting a vision correction . Don ' t feel pressured into getting something you can ' t afford . If the aesthetics of glasses bother you , maybe look into contact lenses ? Learning to poke yourself in the eye is no fun , but modern lenses are comfortable when properly fitted and more or less invisible unless you know what to look for . <| sep |> Polygraphy is pseudoscience it does not work if the subject under test knows it does not work . It is filled with frauds and charlatans , including fake doctorates like this one 046 . shtml and this one 047 . shtml and this one . 036 . shtmlThe National Academy of Sciencespolygraphreport . pdf says it does not work . There ' s much more along these lines at The only reason it continues to be used is they don ' t have anything better than this modernized version of the Spanish Inquisition , filled with nonsense about how maybe the machine doesn ' t work , but certainly the examiners can figure out if you ' re lying . A tool whose readings have no standards , no basis in science , and have failed multiple times to catch spies , liars , and cheats and this is the best polygraphy has to offer . And it ' s icewater that flows in the veins of every polygrapher when they see these words because they feel their world unraveling just a little bit every time someone points out that it simply does not work .