For best results, use an all-natural soap that does not contain additional fragrances or moisturizers. These chemicals can transfer from your hands to the case and then to your eyes. [3] X Research source When you know you are going to handle your case or contacts, dry your hands off with a lint-free towel. This will prevent fibers from making their way into your case and causing eye irritation. [4] X Research source
This may sound like common sense, but check that your contacts are not in the case before you empty it.
Spraying is a critical step in bacteria prevention. One study reported that 70% of contact cases contained bacteria and other contaminants. [8] X Research source Make sure to use the multi-purpose solution that your doctor suggested. Using a standard saline solution or wetting solution will not sanitize your case properly. [9] X Research source
Some people contend that boiling your case is the best weekly cleaning method. If you would like to try this, you will need to dip your case into boiling water for at least three minutes. Be very careful to avoid burns. [16] X Research source Other people recommend that you run your case through the dishwasher. [17] X Research source If you detect visible dirt or hard biofilm on your case during your weekly cleaning, you may want to consider replacing it early. [18] X Research source
In one study, 47% of contacts users admitted to never replacing their lens case. [21] X Research source You may be tempted to keep using your case if it doesn’t look dirty or worn. However, be aware that most bacteria are not able to be seen by the naked eye. [22] X Research source Many contact solutions come with a new case, so you can throw away the old one each time you buy new solution.
