Your glasses may create hazy vision if they have not been properly set for you. Incorrectly adjusted or ill-fitting glasses do not sit properly on your face. They might be too far away or too close to your eyes to provide clear vision. When you wear incorrect glasses, the lenses can file over the surface of your eye, causing blurred vision and preventing them from seeing details clearly. If you think that your glasses are blurring your vision, it's best to get them fixed by an expert. The last thing you want is to cause permanent damage to your eyes due to an incorrectly set pair of glasses. Incorrectly set glasses pose a risk to your health in other ways too. For example, they can irritate your eyes if they're too tight or too loose around the frame. This can lead to irritation, redness, and watery eyes. Some people are also allergic to certain materials used in frames, such as nickel or wood. If you know you are allergic to any elements used in frames, then avoid wearing them unless you want to suffer through blurry vision. Finally, if you wear reading glasses for correcting poor vision, make sure they are fitted correctly. Reading glasses should be focused more closely to your face than regular glasses so that they can bring distant objects into focus without affecting the near vision required for reading.