1. Axis-free correction of astigmatism using bifocal soft contact lenses
Alexander Leube, Imre Kovats, Siegfried Wahl, Wolfgang Sickenberger 
Contact Lens and Anterior Eye 
Volume 40, Issue 6, Pages (December 2017)
DOI: /j.clae
Copyright © 2017 The Authors Terms and Conditions

2. Fig. 1 Workflow of the study course. VA=monocular visual acuity test.
Contact Lens and Anterior Eye  , DOI: ( /j.clae )
Copyright © 2017 The Authors Terms and Conditions

3. Fig. 2
Spot diagram in the image plane (retina) of the astigmatic eye model corrected with a center near bifocal contact lens. Green and blue symbols represent rays from the central and the peripheral zone, respectively. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
Contact Lens and Anterior Eye  , DOI: ( /j.clae )
Copyright © 2017 The Authors Terms and Conditions

4. Fig. 3
(a) Image quality analysis of the MTF for the tangential and sagittal image plane of the diffraction limited (DL), the naked model eye (Eye), the astigmatic model eye (astEye) and the corrected model eye (CL). (b) and (c) represent the wavefront error maps (in wave units λ=546nm) of the corrected and the astigmatic model eye, respectively.
Contact Lens and Anterior Eye  , DOI: ( /j.clae )
Copyright © 2017 The Authors Terms and Conditions

5. Fig. 4
Vector plot for comparison of the astigmatism before (red) and after (blue) correction. Symbols represent the mean and the ellipses the standard deviation from n=46 eyes. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
Contact Lens and Anterior Eye  , DOI: ( /j.clae )
Copyright © 2017 The Authors Terms and Conditions

6. Fig. 5
Mean visual acuity (logMAR) at baseline and after correction with no, spherical or cylindircal overrefraction. Error bars represents the 95% confidence interval (CI). Follow up times are shown on the x-axis.
Contact Lens and Anterior Eye  , DOI: ( /j.clae )
Copyright © 2017 The Authors Terms and Conditions