%0 Journal Article
%A Carpena Torres, Carlos
%A Ferrando León, Elena
%A García García, Carla
%A Romaguera, María
%A Huete Toral, Fernando
%A Carracedo Rodríguez, Juan Gonzalo
%T In Vitro Evaluation of Soft Contact Lens Wettability With a Nonmodified Commercial Videokeratoscope
%D 2024
%@ 1542-2321
%U https://hdl.handle.net/20.500.14352/104441
%X Purpose: To evaluate a new in vitro technique for measuring soft contact lens wettability using a nonmodified commercial videokeratoscope, the Medmont E300. To this end, the capability of different artificial tears containing hyaluronic acid (HA) to improve soft contact lens wettability in vitro was investigated.Methods:  An experimental in vitro study was conducted to assess the wetting properties of three artificial tears containing different concentrations of HA (0.1%, 0.2%, and 0.3%) on soft contact lenses. A saline solution was used as the control. For each solution, 15 hydrogel (Ocufilcon D) contact lenses and 15 silicone-hydrogel (Somofilcon A) contact lenses were evaluated. The in vitro wettability of the lenses was measured using the Medmont E300 with a self-developed technique, which involved measuring the tear film surface quality (TFSQ) mean, TFSQ area, TFSQ central, and TFSQ inferior.Results:  Compared with the saline solution, all the concentration of HA (0.1%, 0.2%, and 0.3%) improved the in vitro wettability of both soft contact lenses by decreasing their TFSQ mean and TFSQ area (P<0.05). Regression models revealed an exponential relationship between contact lens wettability and the concentration of HA for both soft contact lenses (R>0.5, P<0.05). Furthermore, the hydrogel contact lens presented a wetter surface than the silicone-hydrogel contact lens (P<0.05).Conclusions:  The measurement of in vitro wettability of soft contact lenses with a nonmodified Medmont E300 seems to be a useful technique to evaluate the wetting properties of contact lens products.
%~