As you get older, you start to notice that your eyesight isn’t as sharp as it used to be. You start to squint, adjust the distance between your eyes and your book or phone, and find it difficult to see in low light. These are usually the signs of presbyopia and it means that you need to get glasses. Most people don’t want to wear glasses, especially when they’ve crossed 40 as the change would be immediately noticeable. However, neglecting that can cause strain to your eyes and harm you. One of the best ways to address this problem is to wear contact lenses.