When evaluating tear film break up time, what is a concerning indicator for contact lens success?

A break-up time of less than 10 seconds is considered a concerning indicator for contact lens success because it suggests that the tear film stability is compromised. In individuals using contact lenses, a stable tear film is critical for ensuring comfort and preventing dryness, irritation, and potential damage to the cornea.

When the tear film breaks up too quickly, it indicates inadequate tear production or an imbalance in the tear components. This instability can lead to discomfort while wearing lenses, significantly impacting the overall success and wearability of contact lenses. Establishing comfortable and effective wear relies on adequate hydration and a stable tear film, making the 10-second threshold a critical marker for clinicians assessing candidates for contact lens use.