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We often get asked how to use a contact lens case, for how long, how much solution to use etc. We prepared another article about contact lens care for you where you can read about the care for lens cases.
Our optician recommends you replace your contact lens storage case at least every three months.
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. Biofilm cannot be seen by the naked eye; therefore, it is best to replace the case at least every three months.
To reduce the chances of infection or inflammation, immediately after lenses are removed, discard the old solution from the wells of the case. Then rub the case with clean fingers for at least five seconds, rinse with contact lens disinfection solution, then wipe dry with a clean cloth. Avoid washing the case with tap water as this has been linked with increasing the risk of developing Acanthamoeba keratitis, a severe corneal infection, resistant to treatment and cure, that can lead to permanent vision loss.
After wiping the case dry, it should be stored in a clean, dry location with the case face down and caps off. Some storage cases have been developed that have silver mixed in the plastic of the case. Since moisture helps activate the silver, these cases should be stored with caps screwed onto the case.
Your lenses need to be completely immersed in the solution. To ensure enough disinfectant is present, the case should be completely filled.
Adding additional solution to a contact lens case (known as “topping off”) has been linked to serious eye infections and is a significant risk factor for developing contact lens-related problems. To reduce this risk, all solution should be dumped out after use, the lens case should be rubbed with clean fingers for at least five seconds, rinsed with contact lens disinfection solution, then wiped dry with a clean cloth. Avoid washing the case with tap water as this has been linked with increasing the risk of developing Acanthamoeba keratitis, a corneal infection that is resistant to treatment and cure.
Contact lens cases are at great risk for becoming contaminated when stored in humid environments, such as bathrooms. Lens cases should be stored in a clean, low humidity area.
Swimming with contact lenses should be avoided whenever possible to help prevent bacterial contamination of your eye. Swimming with contacts can result in eye infections, irritation and potentially sight-threatening conditions such as a corneal ulcer.
If there is anything we didn't cover, do not hesitate to get in touch. One of friendly member of Customer Care Team will be here to help!
There does not appear to be any direct instructions not to wear contact lenses when swimming - I only recently learned this information on a radio programme I have never been told by my optician - I think that this is one of the first things that patients should be told -