What is a disadvantage of a chemical-based rigid contact lens care system?

The disadvantage associated with a chemical-based rigid contact lens care system is irritation. This can occur because the cleaning solutions typically contain various chemicals that can potentially cause discomfort to the eyes, especially if there are sensitivities or allergies to specific ingredients in the solution. Users may experience redness, itching, or stinging if the solution is not thoroughly rinsed out or if it interacts unfavorably with the eye’s natural chemistry. This is particularly important for contact lens wearers, as their eyes are often more sensitive due to the presence of the lenses.

In contrast, durability of the lenses themselves is typically a strong point, as rigid gas-permeable lenses are known for their longevity. Cleansing efficacy refers to how well the system cleans the lenses, and many chemical-based systems are generally effective at maintaining cleanliness. Lastly, cost-effectiveness isn't inherently a disadvantage; it varies depending on individual preference and the specific products used. Therefore, irritation stands out distinctly as a notable drawback associated with chemical-based lens care systems.