Do you ever end up leaving your soft contact lenses in for an extra few days? We don't need to tell you that things are a whole lot better when they're new. You won't be surprised to hear that the same idea can be used to understand the importance of changing your lenses. As a rule, you shouldn't leave your contacts in for any more time than you're supposed to. Although it might be tempting to wear them just one more time, if you want your eyes to see their very best, stick to the replacement and wearing schedule recommended to you by your optician. So, if you're told to use a new pair daily, change them daily, because they can't withstand extended wear.
A lot of people think to themselves, would it be so bad if I got a couple additional wears out of them? In order to better understand 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 the surface of your lenses, creating a thin haze. Blurry vision is just the start.
Eventually these proteins change form and make your immune system think the buildup is a foreign particle, which in turn can be expressed as inflammation in the eye. This leads to a situation where your vision won't be working at its best. Even when you're strict about caring for your contacts, sooner or later they stop being as clear and smooth, due to normal wear and tear.
It's best to keep to the schedule your eye care professional advises for you. Everyone's eyes are different, so only your optometrist should determine the best contact lens replacement routine for you. When you replace your lenses on schedule, you'll never even recognize the difference that is so apparent when you use them longer than you're supposed to.