How does the direction of view change if the IOL is not properly aligned.

What is it about?

Simulation of the changes in the direction of view and the postoperative spherical equivalent refraction as a function of IOL-decentration and IOL-tilt in normal eyes calculated from personalized ray-tracing models.

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Why is it important?

We suggest a new strategy for placing the IOL for custom ray-tracing simulations. The fixation axis changes when the IOL is misplaced. Although this is in most cases not clinically relevant, simulation studies of the effect of IOL-misalignment on the image quality should take this into consideration to draw better conclusions.