If you are currently using an all-purpose solution system and you want to switch, it's important that you choose another one that is also an all-purpose solution. Otherwise, your lenses may not be getting properly cleaned and disinfected, which could lead to decreased comfort, or even worse, a serious infection. Please be careful. If you put some disinfectants directly into the eye, they will cause severe burning. If you have any doubts, call your doctor's office to ask if the solution is one that's recommended.