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    New IOL category offers more natural range of vision



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    The addition of an EDOF lens to our practice has significantly changed the way I talk with patients about advanced technology IOLs. The lens has more than doubled the share of presbyopia-correcting lenses that I implant–from about 10% of all my cataract procedures to 20% to 25% (See Figure 1). 

    Figure 1: EDOF IOLs have more than doubled the share of presbyopia-correcting lenses that Elizabeth Yeu, MD, implants in her practice - from about 10% of all cataract procedures to 20% to 25% of all cases. Courtesy of Elizabeth Yeu, MD

    We took a careful and pragmatic approach to launching EDOF lenses that some might find unusual. We expected that EDOF lenses would probably not provide the very close near vision that higher-add multifocal IOLs do.

    My experience in the past, particularly with the Crystalens pseudo-accommodative IOL platform (Bausch + Lomb), was that if the lens was promoted for “reading vision” or “distance and near” vision, patients expected to see everything at near without reading glasses, no matter what caveats I offered to manage expectations. 

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    • UBM User
      Enjoyed the article, but this represents an opinion.. Until such presbyopia correcting lenses are evaluated at both distance and near under luminance and contrast conditions that match the visual task the patient desires to pursue, they cannot be assured of providing the desired effect. Ophthalmology and optometry have focused on improving the optical transfer function of the media under different focal positions, but forgotten to evaluate for the functionality desired by the patient. Even at the Novel Endpoints conference sponsored by the FDA, the primary focus remained the focal outcomes not the functional. Please contact me if you desire to know more.


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