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Effect of misalignment at different orientations associated with angle κ on optical performance of aspheric intraocular lenses with different surface designs

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Abstract

Intraocular lens (IOL) misalignment and angle $\kappa$ have had significant negative impact on post-operative quality of vision. ZEMAX software has been used to imitate the optical performance of pseudophakic eyes with different IOL surface designs at different orientations of IOL misalignment (decentration of 0.4 mm and tilt of  7°, and with the existence of  0.5 mm angle $\kappa$). We found that an aspheric balanced curve optic surface maintained better optical performance via inducing less coma aberration. Coma aberration played an unexpectedly important role in the optical performance. With angle $\kappa$, the impact of IOL misalignment on visual quality was associated with the orientation of decentration and tilt, indicating that the coma compensation also took effect in pseudophakic eyes. Due to the high incidence of post-operative IOL misalignment, our results provide evidence of the importance of considering personalized angle $\kappa$ before cataract surgery for patients.

© 2021 Optical Society of America

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Supplementary Material (1)

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Supplement 1       Supplementary figures

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All data generated or analyzed during this study are included in this published paper and its supplementary information files.

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