Higher-order aberrations when wearing sphere and toric soft contact lenses.

Purpose: To determine the on-eye effect of spherical and toric contact lens design on higher-order aberrations (HOA).

Methods: Thirty eyes (15 subjects) entered a masked, randomized, cross-over study. Each eye was fitted with the spherical and toric lens of the following brands in random order: Acuvue Advance, Biomedics 55, Frequency 55, and SofLens 66.

Visual acuity with spherical and toric soft contact lenses in low- to moderate-astigmatic eyes.

Purpose: To evaluate the visual acuity of myopic, astigmatic eyes, with spherical and toric soft contact lenses.

Methods: A randomized, masked, cross-over study was conducted to compare acuity with soft spherical and toric contact lenses on patients with between -0.75 and -2.