- The study aimed to assess the wettability and friction properties of a new amphiphilic polymeric surfactant (APS) in a silicone hydrogel (SiHy) contact lens material called serafilcon A, comparing it with other reusable SiHy lenses.
- Over 7 days, serafilcon A showed a significant drop in released APS, with fluorescence indicating a 50% decrease from day 1 to day 7 and increased contact angles, suggesting reduced wettability.
- Other SiHy lenses maintained stable wettability and friction measurements over time, with only samfilcon A showing changes in contact angle and coefficient of friction after a longer wear period.