Are there ever days when you leave your soft contact lenses in for a little too long? It goes without saying that lots of things are in in top form when they are at their freshest. It's important to know that the same principle also applies to your contacts. As a rule, you shouldn't keep them in your eyes for any more time than you need to. Although it might seem okay to use them just one more time, if you care about having healthy eyes, don't ignore the replacement routine given to you by your optometrist. So, if you've been told to wear a new pair every two weeks, then change them every two weeks, because they can't withstand reuse.
You might think, can't I just squeeze two or three more wears out of them? To understand this idea, let's examine protein - not the dietary kind, but the natural protein found in your tears that gathers over time on your lenses, forming a thin haze. Foggy vision is just the beginning.
Sooner or later, these proteins change form and confuse your immune system, which begins to think that the accumulation is something foreign, which in turn can be expressed as itchy, swollen and irritated eyes. This leads to a situation where your vision won't be working at its best. Other factors can also attribute to this, like the build up of dust or pollen on the lens Even if you take perfect care of your contacts, as time passes, they'll become less smooth and clear, which is the result of normal wear and tear.
So basically, it's best to keep to the plan your optometrist determines for you. Nobody has the same eyes, so only your eye care professional should decide on the right contact lens replacement routine for you. When you change your lenses on time, you will never even see the difference that becomes so apparent when you use them longer than you're supposed to.