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    Presbyopic laser vision correction: Analyzing PRK method at 1 year



    Results from follow-up to 1 year in 16 patients treated with PRK using a multifocal bi-aspheric ablation profile show good visual acuity outcomes and patient satisfaction.

    Dr. Eskina

    MoscowPhotorefractive keratectomy (PRK) using a proprietary multifocal bi-aspheric ablation profile (PresbyMax, Schwind eye-tech solutions) and a micromonovision-based approach is a safe and effective treatment for ametropic presbyopes, according to outcomes of patients followed for up to 1 year, said Erika N. Eskina, MD.

    “We chose to use PRK rather than LASIK because surface ablation greatly increases the possibilities of the method and expands the indications,” said Dr. Eskina, professor, Department of Ophthalmology, National Medical-Surgical Center, and medical director, laser surgery clinic, “SPHERE,” Moscow, Russia. “However, we recognize that some ophthalmologists still question the effectiveness and predictability of PRK.

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    “Our initial experience has already suggested a modification to the refractive target that we believe will be beneficial, and further study with longer follow-up is still needed to show the safety and effectiveness of corneal presbyopia correction with the use of a surface ablation technique,” she said.

    Visual acuities

    Data collected in a cohort of 16 bilaterally treated patients showed good distance and near visual acuity associated with a high rate of spectacle independence. Contrast sensitivity was maintained within the normal range, no eyes lost more than 1 line of best-corrected visual acuity (BCVA), and patient satisfaction was high. There was a slight residual myopia in the dominant eye.

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