Your guide to using and cleaning contact lens cases

Q: How often should you replace your contact lens case?

You should replace your case at least every three months. If you notice any cracks or damage, replace it immediately to prevent possible contamination.

Q: Can I wash my contact lens case with water?

No. Never use tap water, distilled water, or soap. Water can carry harmful microorganisms that lead to infections. Always use a sterile contact lens solution.

Q: Why shouldn't I top off my solution?

Leftover cleaning solution in the case may already contain germs and debris from the lens and from handling. Topping off also dilutes the disinfecting power of the fresh solution. This mix of contaminated and weakened solution can leave your lenses insufficiently cleaned and increase the risk of eye infections. To keep your eyes safe, always pour out the old solution, clean the case as recommended, and refill with fresh solution each time.

Q: Can you run your contact lens case through the dishwasher?

No, water and soap should not come into contact with your contact lens case. Stick to the recommended routine and only use a multipurpose disinfecting solution.

Medically reviewed on January 28, 2026

•

Published on April 8, 2026

•

5 minute read

Key takeaways

Why your contact lens case matters

How to clean your case correctly

Never use water to clean your contact lens case

How often to replace your contact lens case

Traveling with contact lenses

What’s next?

Tired of cleaning your contacts and their case?

Frequently asked questions

How often should you replace your contact lens case?

Can I wash my contact lens case with water?

Why shouldn't I top off my solution?

Can you run your contact lens case through the dishwasher?