Auswirkungen auf die Wellenfrontabweichung nach kurzfristigem Tragen von SenofilconPhotochromes Tragen von Kontaktlinsen

Abstract

Background: To assess the variability in wavefront aberrations with short-term photochromic senofilcon A contact lens wear in both its activated and inactive states. Methods and material: In this cross-sectional study, 20 participants who had previously used soft contact lenses were enrolled. Corneal aberrometry measurements were performed on each subject, without contact lenses, using Sirius Scheimpflug-Placido topography. The photochromic lenses were illuminated using a blue-violet light (λmax = 420 nm) so as to provoke an activated state, and measurements were taken with the lenses inserted, in both states. The root mean square (RMS) of the aberrations was calculated, and the higher- and lower-order aberrations, astigmatism, coma, spherical aberration and trefoil measurements were evaluated using a 5.0-mm pupil diameter. Results: The average contact lens sphere power was -2.33 ± 1.07 D. The mean refractive errors with contact lens wearing were 0.07 ± 0.18 D for the sphere and -0.26 ± 0.15 D for the cylinder. The mean RMS values for all the corneal aberrations showed no statistically significant differences between with and without contact lenses (p > 0.05). In a bivariate correlation analyses, there was a positive correlation between contact lens sphere power and coma (vertical and horizontal) in the activated state (r = 0.455, p = 0.44 and r = 0.495, p = 0.27, respectively). Concluslon: The photochromic contact lenses did not influence ocular aberration during short-term wear, even when the photochromatic additive was activated. This property may help to provide more comfortable vision with lens wear. This finding needs to be verified by further studies. © 2022 Georg Thieme Verlag. All rights reserved.