Which practice is NOT recommended when using GP lens solutions?

• A. Cap solutions
• B. Read solution labels
• C. Sleep with lenses in
• D. Use recommended solutions

Answer: (C)

Sleeping with gas-permeable lenses in is not recommended because eyelids trap moisture and reduce tear exchange during sleep, significantly lowering oxygen supply to the cornea. This hypoxic stress can lead to corneal swelling, discomfort, and a higher risk of infection or other complications. Cap the solution containers after use to keep them sterile and prevent contamination from the environment. Reading solution labels is important to ensure you’re using the right product for your GP lenses and that you follow the correct disinfection method, since some solutions aren’t compatible with certain lens materials. Always use the solutions recommended by the lens manufacturer, as using non-recommended products can irritate the eye or damage the lens material. Following these practices helps maintain lens safety, comfort, and visual quality.