The design of contact lenses determines when it is time to throw them out. Daily-wear lenses mean just that, you wear the lenses for one day, and then replace them. However, some disposable lenses work for extended periods. Eyes produce proteins and lipids that build up on contacts. Once these natural deposits settle on the surface, the lens can become uncomfortable. Following some common sense guidelines for extended-wear contacts lenses will help you develop a plan for replacement.
Step 1
Look at your eyes in the mirror. If you've been using your contact lens too long between replacements, your eyes may appear red and irritated.
Step 2
Insert the lenses into your eyes, and look around. Blurred vision will be a sign of deposit buildup on the lens. Once your vision becomes obstructed, it's time to throw the lenses out.
Step 3
Clean the lenses nightly following the instructions provided with the product. This may include soaking lenses in a cleaning solution. As you clean, pay attention to the deposit buildup on the lenses. Most deposits come off with proper maintenance, but not all. As the deposits accumulate, they will become visible to the naked eye. Once you see deposits that do not come off with cleaning, replace the lenses.
Step 4
Follow the schedule provided by your eye doctor for replacing the lenses. Your doctor will prescribe the best lenses for your eyes. If he supplies 30-day lens, do not wear them longer than 30 days.
