Do you ever leave your soft contact lenses in for an extra few days? We don't need to tell you that generally, things are in in top form when they are fresh. It's important to know that the same principle applies to your lenses. It's a bad idea to keep your lenses in for longer than you need to. Although it might seem harmless, if you want your eyes to see their very best, don't overlook the replacement schedule given to you by your optometrist. This means that if your optometrist tells you to change pairs monthly, then change them every month, because they can't withstand reuse.
A lot of people think to themselves, can't I just squeeze a couple more days out of them? In order to better understand this, let's examine protein - not the dietary kind, but the natural protein in your eyes that gathers over time on your lenses, creating a mild haze. Blurry eyesight is just the beginning.
After some time, these proteins evolve and confuse your immune system, which begins to think that the accumulation is a foreign particle, and the body's reaction can be expressed as itchy, swollen and irritated eyes. Which means your vision won't be working at its best. Dust and pollen also build up on the lens, slowly make it less clear. But even when people take great care of their contacts, eventually they'll become less clear and smooth, which is the result of normal wear and tear.
So basically, it's best to keep to the schedule your optician determines for you. Everyone's eyes are different, so only your optometrist should decide on the correct contact lens replacement routine for you. If you replace your contact lenses at the correct times, you will never even see the difference that becomes so apparent when you overwear them.