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    Image-guided system streamlines cataract surgery planning

    Technology results in low residual refractive cylinder, good accuracy to outcomes

    Take-home message: A new image-guided system streamlines surgical planning for patients undergoing cataract surgery with implantation of a single-piece aspheric IOL or a multifocal IOL.

    Houston—Using a new image-guided system (Verion Image Guided System, Alcon Surgical) to plan cataract surgeries with implantation of a single-piece aspheric or multifocal IOL resulted in low residual refractive cylinder and good accuracy to target and refractive outcomes. 

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    These initial results indicate the image-guided system is a valuable addition to the cataract surgery toolkit.

    Stephen G. Slade, MD, and Kerry Solomon, MD, evaluated the system in an open-label, prospective, non-randomized, multicenter study that included 188 eyes.

    All patients underwent femtosecond laser (LenSx)-assisted cataract removal during phacoemulsification. Any preoperative astigmatism was treated with astigmatic keratotomy.

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    Eighty-eight patients were implanted with a single-piece aspheric monofocal IOL (SN60WF, Alcon), and 100 patients were implanted with a multifocal IOL (AcrySof IQ ReSTOR IOL, Alcon).

    The residual refractive cylinder, postoperative manifest refractive spherical equivalent (MRSE) accuracy to target, and the best-corrected distance visual acuity (BCDVA) (exploratory efficacy results) were recorded at three months postoperatively, according to Dr. Slade, private practice, Houston.

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    The primary study objection was evaluation of the clinical results as measured by the percentage of the study population with 0.5 D or less of residual refractive cylinder three months postoperatively.

    The secondary objectives were assessment of the outcome of the manifest refraction spherical equivalent (MRSE) compared with the targeted outcome of 0.5 D or less and a comparison of the keratometry readings, mean corneal curvature, and magnitude of astigmatism and description of the axis measured preoperatively.


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