How to Clean Your Contact Lens Case
You take your lenses out at night, open your contact lens case, and suddenly realize…you cannot remember the last time you actually cleaned it.
Not rinsed it quickly. Not dumped out the old solution and refilled it. Actually cleaned it.
The funny thing is that people are usually very focused on keeping their contact lenses clean, but the case itself often gets forgotten. Meanwhile, that little plastic case touches your lenses every single day.
Over time, contact lens cases can collect bacteria, debris, leftover solution buildup, and tiny microorganisms that are difficult to see. Even if the case looks clean, it may not actually be clean.
That is why properly cleaning and replacing your contact lens case is such an important part of overall eye health.
Why Cleaning Your Contact Lens Case Matters
Your contact lens case spends all day and night holding lenses that go directly onto your eyes.
If bacteria start growing inside the case, those bacteria can transfer onto your lenses the next time you wear them. That can increase the risk of irritation, redness, dryness, and in more serious cases, eye infections.
One of the biggest mistakes people make is “topping off” old contact lens solution instead of fully emptying and cleaning the case first.
It feels harmless in the moment. A lot of people do it when they are tired or trying to save solution. However, old solution can leave behind bacteria and buildup that continues sitting in the case.
How to Properly Clean Your Contact Lens Case
Cleaning your contact lens case is actually pretty simple once it becomes part of your routine.
After putting your contacts in, empty out all old solution from the case completely.
Then rinse the case using fresh contact lens disinfecting solution. Avoid rinsing it with tap water, since water can contain microorganisms that are not safe for contact lenses or your eyes.
Then leave the case open and upside down on a clean tissue or paper towel so it can air dry fully.
A lot of people immediately close the case after rinsing it, which can trap moisture inside and create a better environment for bacterial growth.
Letting it dry completely helps mitigate this.
Why Eye Doctors Say Not to Use Tap Water
This is one of the biggest contact lens rules people accidentally ignore.
Tap water may seem harmless, but it can contain microorganisms that are dangerous for contact lens wearers. One of the most serious is Acanthamoeba, a microscopic organism that can cause severe eye infections.
These infections are rare, but they can be extremely painful and difficult to treat.
That is why eye doctors recommend avoiding tap water completely when it comes to contact lenses and contact lens cases.
No rinsing your case with sink water. No storing lenses in water. No showering or swimming with contacts in.
It is one of those things that sounds overly cautious until you realize how serious eye infections can become.
How Often Should You Replace Your Contact Lens Case?
Most eye doctors recommend replacing your contact lens case every one to three months.
A lot of contact lens solution bottles actually come with a new case for this reason, but many people continue using the same old one far longer than they should.
Even with proper cleaning, cases slowly develop scratches and tiny areas where bacteria can build up more easily over time.
If your case looks cloudy, cracked, slimy, or discolored, it is definitely time to replace it.
Truthfully, replacing the case regularly is one of the easiest things you can do to help lower the risk of irritation and infection.
Why Daily Contact Lenses Can Help Lower Infection Risk
Daily contact lenses can help mitigate some of this risk because you start with a fresh, sterile pair every single day.
With reusable lenses, there are simply more opportunities for bacteria and buildup to accumulate over time. Monthly and biweekly lenses require regular cleaning, disinfecting, proper storage, and consistent contact lens case hygiene. If any part of that routine slips, whether it is topping off old solution, forgetting to clean the case, or wearing lenses longer than recommended, the risk of irritation and infection can increase.
Daily disposable lenses remove a large part of that process. Since the lenses are thrown away at the end of the day, there is no need to store them overnight in a contact lens case. That also means there is no contact lens case sitting in your bathroom collecting bacteria over time.
That does not mean daily lenses make eye infections impossible. You still should not shower, swim, or sleep in them unless specifically approved by your eye doctor. Hand washing and overall contact lens hygiene still matter a lot.
For many people, daily contacts reduce risk simply because there are fewer reusable surfaces involved and fewer steps where contamination can happen.
What Happens If You Never Clean Your Contact Lens Case?
Most complications build slowly over time through repeated habits, not one mishap. That is part of why eye doctors talk about contact lens hygiene so much.
A lot of people get away with bad contact lens habits for years without problems.
Until one day they do not.
Using old solution, skipping cleaning, sleeping in lenses, or holding onto the same case for six months can all increase the risk of problems eventually.
A clean case, fresh solution, and replacing things regularly goes a long way.
FAQ
How often should I clean my contact lens case?
You should clean your contact lens case daily by emptying old solution, rinsing the case with fresh disinfecting solution, and allowing it to air dry completely.
Can I rinse my contact lens case with water?
No. Eye doctors recommend avoiding tap water because it can contain microorganisms that may cause serious eye infections.
How often should I replace my contact lens case?
Most eye doctors recommend replacing your contact lens case every one to three months.
Is it bad to reuse old contact lens solution?
Yes. Old solution can contain bacteria and buildup that may increase the risk of irritation or infection.
Can a dirty contact lens case cause eye infections?
Yes. Bacteria and microorganisms can grow inside contact lens cases and transfer onto lenses when worn.
Why does my contact lens case smell bad?
A bad smell can be a sign of bacteria buildup. If your contact lens case has a smell, throw it away and start using a new one.
Should I close my contact lens case after cleaning it?
It is usually better to leave the case open and upside down on a clean surface so it can fully air dry.
Can I use soap to clean my contact lens case?
Most eye doctors recommend using fresh contact lens disinfecting solution rather than soap, since soap residue can irritate the eyes.
What is the safest way to store contact lenses overnight?
Store them in a clean case filled with fresh disinfecting solution.
Where can I order contact lenses online?
You can order manufacturer-sealed contact lenses online through authorized retailers like Blue Planet Optics with a valid prescription.