Earlier this year we wrote about large numbers of contact lens wearers accidentally burning their eyes after mistakenly rinsing or soaking their lenses with a popular lens cleaning and disinfectant solution called Clear Care (Ciba Vision). This past Friday we heard from yet another lens wearer who had burned her eyes, so I thought it would be worthwhile to do an update.
Clear Care is 3% hydrogen peroxide, which should never be used as a contact lens rinse or to soak lenses in a flat lens holder. The Clear Care website does mention that if you do either, it can burn or sting your eyes. In truth, it does much more than that! Doing so can cause severe burning and chemical injuries to the eye, sometimes with corneal damage or inflammation that requires treatment. Also, the pain associated with this error is so bad that it’s often described as “scorching” or “searing” or “the worst pain I ever experienced.” This is a problem that is quite familiar to eye doctors and ER personnel.
Clear Care is supposed to be used to soak contact lenses for at least six hours in a special accompanying lens case that holds a small platinum ring. The ring creates a bubbling action which actively releases oxygen, cleans and removes protein from lenses and neutralizes the solution, killing bacteria in the process. After the disinfecting and neutralizing step is completed, the lenses can be removed from the case and placed in the eyes. Contacts must never be rinsed with the hydrogen peroxide solution and placed directly into the eye. The entire disinfecting and neutralizing step must be completed.
Unfortunately, it’s all too easy for contact lens users to mistake containers of Clear Care or generically equivalent solutions for one of the similar looking buffered contact lens rinsing or cleaning solutions. These are in fact supposed to be used directly with lenses as a rinse or soak. Consumers often mention they did not know about the difference, since in stores or supermarkets, Clear Care is stored along with the buffered solutions and the containers have similar wording and graphics. For example, Clear Care says “No Rub,” meaning you don’t have to rub the lenses clean, and “Cleaning and Disinfecting.” The buffered solutions have similar wording that says, “Easy Rub” and also mentions they are “Cleaning and Disinfecting.” All of these solutions also have pictures of contact lenses.
Other reported cases have occurred when a buffered solution user tries to borrow a friend or relative’s rinse when they run out of their own or when visiting someone who also wears contact lenses. In the bathroom they see the Clear Care bottle with the contact lens picture and just assume it’s the same as their ordinary solution for rinsing or soaking. Many of the reported cases have involved teens who might not exercise as much care as they should in reading labels. In addition, sometimes people function in what I call “automatic mode.” One patient wrote that although he had been using Clear Care for a while, he accidentally reverted to an old habit he had with the buffered rinse he previously used, grabbing the bottle, rinsing his lenses and putting them in his eye.
Although instructions for proper use of Clear Care are printed on the container label, people don’t always read labels as they should. One problem with Clear care is that you have to turn the container to see any warnings about not using it in the eye. But you probably wouldn’t do that if you didn’t know there were any warnings on the other side.