Case hygiene and eye safety
How to clean a contact lens case the right way
FDA guidance notes that contact lens cases can be a source of bacterial growth. This guide follows the current CDC and FDA steps for fresh solution, rubbing and rinsing, air-drying, and replacement.
Why the case is part of lens care
The storage case is one part of a complete contact lens care system. The FDA advises wearers to follow the lens, solution, and case labels, use fresh solution, keep water away, and replace the case every three months or as directed by an eye-care professional.
Water is not a substitute for contact lens solution. The FDA associates water exposure with Acanthamoeba keratitis and says not to expose contact lenses or storage cases to water. Use the solution specified for your care system.
The daily contact lens case cleaning routine
Run this routine after each use. Your lens, solution, and case labels plus your eye-care professional's directions take precedence.
Empty the old solution after each use
Tip out all used solution after removing your lenses. Do not top off or reuse it. The CDC says to use fresh contact lens solution each time you store lenses.
Rub and rinse with fresh contact lens solution
With clean, dry hands, rub and rinse the storage case with fresh contact lens solution specified for your care system. Follow the solution, lens, and case labels plus any directions from your eye-care professional.
Keep water and saliva out
Do not rinse the case or lenses with tap, bottled, or distilled water, and never use saliva. FDA guidance associates water exposure with Acanthamoeba keratitis and directs wearers to use contact lens solution instead.
Air-dry face down on a clean tissue
Empty excess solution, then store the clean case upside down on a fresh tissue with the caps off. This matches the CDC's storage-case instructions.
Empty the old solution first, then use fresh solution for the rub and rinse. Finish by emptying excess solution and storing the case upside down on a fresh tissue with the caps off.
A regular case check
Cleaning instructions apply after each use. Also check that the case remains intact and that its replacement date has not passed.
Follow the labeled care system
Use only the contact lens solution and method specified for your lenses and case. Care systems are not interchangeable, so the product labels and your eye-care professional govern.
Check the case while you clean it
Look for cracks, damage, or a cap that no longer closes correctly. Replace a damaged case rather than improvising a repair or an unlabeled cleaning method.
Keep the replacement date visible
The FDA says to replace a contact lens storage case every three months or as directed by your eye-care professional. A calendar reminder makes that instruction easier to follow.
What not to do
These shortcuts conflict with current CDC or FDA instructions, or replace the maker's labeled care method with an improvised one.
Rinsing the case with tap water
FDA and CDC instructions say not to use water on contact lenses or their storage case. Use fresh contact lens solution specified for your care system.
Topping off old solution
CDC guidance says to avoid topping off. Empty the wells and use fresh solution each time you store lenses.
Using hand soap, dish soap, or alcohol inside the wells
Use the cleaning product and method listed for your contact lens care system. Do not substitute an unlabeled household cleaner.
Drying the case with a cloth towel
CDC guidance says to empty excess solution and store the clean case upside down on a fresh tissue with the caps off.
Closing the caps while the case is wet
Leave the caps off and store the clean wells upside down on a fresh tissue, as the CDC directs.
Substituting an unlabeled home sterilizing method
Follow the case, lens, and solution labels. A home heat or cleaning method is not a substitute unless the maker explicitly includes it in the instructions.
Can you sterilize a contact lens case at home?
Do not replace labeled case care with an improvised heat or water method. Use only the method specified by the lens, solution, and case makers.
| Method | Verdict | Detail |
|---|---|---|
| Fresh-solution rub and full air-dry | Recommended after each use | Rub and rinse with fresh contact lens solution, empty excess solution, and store the clean case upside down on a fresh tissue with the caps off. |
| Any water rinse | Avoid | Do not use tap, bottled, or distilled water on the case or lenses. FDA guidance links water exposure with Acanthamoeba keratitis. |
| Boiling, microwave, or dishwasher | Do not improvise | Use only a method explicitly included in the case maker's directions. The CDC and FDA routine uses fresh contact lens solution, not an improvised home process. |
The evidence-backed home routine is the fresh-solution rub and rinse followed by upside-down drying with the caps off. Replace the case on the FDA schedule or your provider's schedule.
How often to replace a contact lens case
The FDA says to replace a contact lens storage case every three months or as directed by your eye-care professional.
| Case or situation | Replace | Why |
|---|---|---|
| Prescribed reusable-lens care-system case | Every 3 months, or as directed | The FDA says to replace the storage case every three months or as directed by your eye-care professional. |
| Organizer for unopened daily disposable packs | Follow the maker's directions and stop if damaged | If you wear daily disposables, your organizer stages unopened foil packs and never touches solution or a worn lens. Keep it dry and replace it if the lid or hinge is damaged. |
| Case in use when symptoms occur | Ask your eye-care professional | Remove the lenses and contact your eye-care professional if you have redness, pain, discharge, or a sudden vision change. Follow their directions for the lenses, solution, and case. |
| Any case that is cracked, cloudy, or scratched | Immediately | Replace a damaged case and follow the maker's directions rather than trying to repair it. |
Want a replace-by date and calendar reminders? The case cleaning schedule generator applies the FDA three-month schedule and keeps dry-organizer reminders separate. The replacement reminder calculator tracks when your lenses and case are due.
If you wear daily disposables, the rules are different
The cleaning steps above apply only when they match the prescribed reusable-lens care system and its case and solution directions. Hydrogen peroxide systems require the special supplied case. If you wear daily disposables, discard each lens after the prescribed use. A separate dry organizer can stage only unopened, sealed packs.
For an organizer, follow the maker's care directions and keep every daily lens sealed in its original blister pack until use. Never use a dry organizer to store a worn lens, a bare lens, or solution. For any reusable-lens case, follow that case and solution system rather than a generic routine. For more on the difference, the daily contact lens case guide covers how to set up an organizer that stays easy to keep clean.
When cleaning is not enough, start fresh
Replace a damaged storage case and replace it every three months or as your eye-care professional directs. Do not rely on a more aggressive home cleaning method to extend the case beyond its instructions.
Replace a worn or damaged storage case with the case supplied or specified by your prescribed care system. Sturdysight is not a soaking case and must never hold bare lenses or solution. It is a hard-shell organizer for unopened daily-disposable blister packs only.
Primary care sources
The storage routine below follows current instructions from the CDC cleaning, disinfecting, and storage guide and the FDA contact lens solutions and products guide. Product labels and your eye-care professional's directions take precedence.
Keep going
How to clean a contact lens case FAQ
How do you clean a contact lens case?
After each use, empty the old solution, then rub and rinse the case with fresh contact lens solution specified for your care system. Never use water. Empty excess solution and store the clean case upside down on a fresh tissue with the caps off. Replace it every three months or as your eye-care professional directs.
How do you sterilize a contact lens case at home?
Do not substitute a home sterilizing method for the labeled care routine. Rub and rinse the case with fresh contact lens solution specified for your care system, empty excess solution, and store it upside down on a fresh tissue with the caps off. Use a heat method only if the case maker explicitly directs it.
Can I clean my contact lens case with water?
No. FDA and CDC instructions say not to use water on contact lenses or their storage case. Water exposure is associated with Acanthamoeba keratitis. Rub and rinse the case with fresh contact lens solution specified for your care system.
How often should I replace my contact lens case?
The FDA says to replace a contact lens storage case every three months or as directed by your eye-care professional. Replace a damaged case. A dry organizer that holds only sealed daily-disposable packs is not a soaking case, so follow its maker's inspection and replacement directions instead.
Why is cleaning the contact lens case so important?
The FDA notes that contact lens cases can be a source of bacterial growth. Following the labeled cleaning routine, keeping water out, using fresh solution, and replacing the case on schedule are all parts of safe lens care.
Should I dry my contact lens case after cleaning?
Yes. After rubbing and rinsing with fresh solution, empty the excess and store the clean case upside down on a fresh tissue with the caps off. This is the CDC's storage instruction.
Can you boil a contact lens case to clean it?
Do not boil a case unless its maker explicitly includes that method in the directions. FDA and CDC guidance instead tells wearers to rub and rinse a storage case with fresh contact lens solution and let it dry upside down with the caps off.
Do daily disposable wearers need to clean a case?
It depends on what the case does. A dry organizer for sealed, unopened daily-disposable packs never touches solution or a lens. Follow the organizer maker's care directions. For a prescribed reusable-lens care-system case, follow that system's labeling and your eye-care professional's directions.
What is the best way to store the case between uses?
Follow the prescribed care-system labeling. Current CDC guidance says to empty excess solution and store a cleaned storage case upside down on a fresh, clean tissue with the caps off. Replace it with the case supplied or specified by that care system.