Is it really that important to change out your contact lens case?
In a word: yes!
The American Optometric Association recommends you replace your contact lens storage case at least every three months.
Why? Because bacteria and other micro-organisms produce a substance called biofilm. Biofilms can form in a contact lens case, helping bacteria “hide” from the disinfectant in the contact lens solution. The worse part is that biofilms cannot be seen by the naked eye.
Failure to replace at the recommended intervals increase the risk of contact lens related infections. Why risk it?