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    How to manage patient’s IOL expectations pre-operatively


    Newest IOLs models

    The Symfony IOL, an EDOF model that was approved in the United States in 2016, has diffractive echelletes, not zones, that are shaped (height and spacing) to elongate focus and reduce chromatic aberrations, thus providing less visual distortion at night and good contrast sensitivity. This IOL provides better intermediate vision at 48 cm than at 40 cm, but can improve the near acuity with mini-monovision.

    The vision is plano in the dominant eye and -0.3 D to -0.55 D in the non-dominant eye. The IOL is also available with a toric component. It can be used if the corneal cylinder exceeds 1.00 D against-the-rule or 0.75 D with-the-rule astigmatism, according to Dr. Braga-Mele.

    The recently available PanOptix IOL and FineVision IOL have a trifocal design. The former, which has the Enlighten Optical Technology platform, provides three add powers and redirects light from the third-step height to distance for more continuous vision, making it less dependent of the pupillary size.

    The FineVision IOL provides near, intermediate, and distance vision at 33 cm, 60 cm, and more than 1 meter, respectively. The IOL combines two diffractive structures (+1.75 D and +3.5 D) with variable step heights from the center to the periphery. The distance vision increases with pupillary size.

    With all the advances in technologies and the varying benefits they provide, patient selection is the key factor in obtaining the best visual outcomes after cataract surgery and IOL implantation.

    Rosa Braga-Mele, MD, FRCSC

    e. [email protected]

    This article was adapted from a presentation the that Dr. Braga-Mele delivered at the 2017 American Society of Cataract and Refractive Surgery meeting. She is a consultant for Alcon Laboratories, Johnson & Johnson Vision, and Allergan.

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