What is the purpose of the cleaning rub step in lens care?

What is the purpose of the cleaning rub step in lens care?

• A. Reduces deposits and biofilm, improving cleanliness, comfort, and transparency.
• B. Increases lens wear time.
• C. Determines lens rotation orientation.
• D. Measures the lens diameter.

Answer: (A)

The cleaning rub step is about physically lifting and removing deposits from the lens surface so the cleaning solution can do its job effectively. Tears leave proteins, lipids, and mucins on lenses, and a thin biofilm can form over time. By gently rubbing the lens with the cleaning solution, these films and deposits are loosened and dislodged, making it easier to rinse them away. The result is a cleaner, smoother lens surface, which feels more comfortable and provides clearer vision. Reducing this buildup also lowers the chance of microbial growth on the lens surface, contributing to overall eye health. This step isn’t about wearing time, lens rotation, or measuring diameter—it's specifically about removing deposits to improve cleanliness, comfort, and transparency.

The cleaning rub step is about physically lifting and removing deposits from the lens surface so the cleaning solution can do its job effectively. Tears leave proteins, lipids, and mucins on lenses, and a thin biofilm can form over time. By gently rubbing the lens with the cleaning solution, these films and deposits are loosened and dislodged, making it easier to rinse them away. The result is a cleaner, smoother lens surface, which feels more comfortable and provides clearer vision. Reducing this buildup also lowers the chance of microbial growth on the lens surface, contributing to overall eye health. This step isn’t about wearing time, lens rotation, or measuring diameter—it's specifically about removing deposits to improve cleanliness, comfort, and transparency.