Which statement best describes a typical characteristic of 2-in-1 systems?

• A. They may have a milder cleaner and provide convenience
• B. They always provide the strongest cleaning
• C. They are not used for GP lenses
• D. They do not contain any disinfectant

Answer: (A)

2-in-1 systems are designed to simplify lens care by combining cleaning and disinfection in one bottle. The typical characteristic is a milder cleaner paired with the convenience of fewer steps, so patients get an easy, one-step routine without needing separate cleaning and disinfection products. This convenience often comes with a cleaning strength that isn’t the most aggressive available, which is why statements about always the strongest cleaning aren’t accurate. Also, these systems are used with GP lenses when the formulation is approved for them, and they do contain a disinfectant, so saying there’s no disinfectant is incorrect. In short, the hallmark is convenient, one-step care with a milder cleaning action.