Have you ever left your disposable contact lenses in for just a few days longer than your optometrist instructs? It's a pretty accepted fact that things are a whole lot better when they are fresh. Guess what? The same principle can be used to understand the importance of changing your contacts. As a rule, you shouldn't leave your contacts in longer than you're supposed to. Even though it might seem harmless to wear them just one more time, if you want to help your eyes stay healthy, stick to the wearing and changing regime that your eye care professional decides on. This means that if you've been instructed to change pairs daily, change them daily, because they can't be worn any longer than that.
So many people think, would it be so bad if I got two or three extra wears 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 builds up gradually on your lenses and forms a light haze. Blurry vision is only the first symptom.
Sooner or later, these proteins evolve and trick your immune system into thinking the formation is a foreign particle, which in turn can lead to inflammation in the eye. And when this occurs, you won't be seeing your best. Other factors can also attribute to this, like the build up of dust or pollen on the lens Even when you do all you can to take good care of your contact lenses, as time passes, they become less smooth and clear, which is the result of normal deterioration.
So basically, it's best to stick to the plan your optometrist advises for you. Everyone's eyes are different, so only your optometrist should determine the right contact lens replacement routine for you. If you replace your lenses on schedule, you will never notice the difference that is so obvious when you overwear them.