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    Extended-depth-of-focus IOLs expand surgical options

    Point/counterpoint among surgeons examines IOL benefits, compares with existing lenses


    On the other hand

    Studies that asked patients with early-generation IOLs if they would pick the same IOL type again, 92% said “yes,” compared with 97% who have more modern IOLs, said Steven J. Dell, MD, medical director, Dell Laser Consultants, Austin, TX. The same percentage of people (97%) said they would choose to have the Symfony again, which Dr. Dell thought was an interesting comparison.

    Dr. Dell was asked to address the drawbacks with extended-depth-of-focus IOLs, but he said he is actually excited about the technology.

    Still, he raised the question of whether extended-depth-of-focus lenses really can create a non-zero sum game, where users do not have the typical visual gain or loss balanced by other gains or losses due to the lens type.

    Some of the technology used in these types of lenses can be found in already existing approved technologies, Dr. Dell said.

    For example, the small-aperture IC8 IOL (AcuFocus) is very similar to the Kamra corneal inlay (AcuFocus), he noted.

    “You get a defocus curve, which you also shift in a myopic or hyperopic direction,” Dr. Dell said.

    Lenses such as the AMO ZKB00 have excellent distance and intermediate vision, with 95% able to function comfortably, he explained.

    “Extended-depth-of-focus lenses will change the way we approach patients, but we have some multifocal and accommodating IOL technology now that can almost reach the same level,” Dr. Dell said.

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