Abstract
Purpose :
To compare the spherical aberrations (SA) before and after lens wear amongst nine different brands of daily disposable soft contact lenses.
Methods :
Two subjects participated in the study. Subject 1 was a 27-year-old female with right eye refraction of -3.00 DS and subject 2 was a 26-year-old male with left eye refraction of -6.25-0.37×149. Only one eye was tested in each subject. The OPD Scan III was utilized for the measurements of corneal topography, refractive error and SA before and after the contact lens was applied to the subject’s eye. The eyes were dilated by one drop of tropicamide 0.5% & phenylephrine hydrochloride 0.5%
Results :
In Subject 1, negative spherical aberration was increased after contact lens wear in all nine brands of contact lens tested. However, such consistent result was not observed with Subject 2. In Subject 2, negative spherical aberration was increased with the following brands of contact lenses: Acuvue 1 Day Moist, Acuvue Oasys 1 Day, Clariti 1 Day, and Biotrue ONEday. In contrast, when Acuvue 1 Day TruEye, Dailies Total One, DAILIES AquaComfortPlus, Proclear 1 Day, and Myday contact lenses were applied to the eye, we observed less increase in negative spherical aberrations, resulting in an overall positive spherical aberration post lens wear.
Conclusions :
In this study, we found that the SA post contact lens wear were different between the two subjects. In the future, perhaps when considering using soft contact lenses for vision correction, besides choosing the correct parameters to best fit the corneal shape and correct refractive error, one must also consider the effect of higher order aberrations and how it can impact the overall visual quality after lens wear.
This is a 2020 ARVO Annual Meeting abstract.