How often do you leave your soft contact lenses in for longer than you're supposed to? It's a basic fact that most things are just plain better when they haven't been used too much. It's no surprise that the same principle applies to your contact lenses. It's a bad idea to keep them in your eyes for any longer than you've been instructed to. Of course, it might seem okay to wear them just one more time, if you want to help your eyes stay healthy, stick to the lens timetable your optician gives you. In other words, if your optometrist tells you to replace them monthly, then change them every month, because they're not made to withstand reuse.
You might think, can't I get a couple extra days out of them? To explain this, let's take a look at protein - and we don't mean the kind you eat, but the natural protein in your eyes that gradually accumulates on your lenses, creating a mild haze. Unclear vision is just the initial result.
As time goes on, these proteins change form and make your immune system think the accumulation is something foreign, which in turn can result in eye irritation, itching and redness. And when this occurs, your eyesight suffers. Other factors can also attribute to this, like the build up of dust or pollen on the lens But even when people take great care of their contacts, sooner or later they become less clear and smooth, due to normal wear and tear.
It's best to commit to the plan your eye care professional decides on for you. If you dispose of and replace your contact lenses at the correct times, you will never even recognize the difference that is so obvious when you use them longer than you're supposed to.