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    PRK enhancement after SMILE favorable after short follow-up

    Surface ablation performed with mitomycin-C (MMC) seems to be a safe and effective technique for treating residual refractive error after myopic SMILE, said Martin Dirisamer, MD.

    Dr. Dirisamer’s conclusion was based on findings from a retrospective study that included 40 eyes followed for 3 months after undergoing PRK as an enhancement

    He noted that significant reduction in MRSE was achieved within 1 week after PRK, and the achieved MRSE was stable to month 3. Uncorrected visual acuity (UCVA) was significantly improved by the 6-week visit and remained stable through the available follow-up.

    At 3 months, mean MRSE was 0.03 ± 0.57 D and mean UCVA was 0.08 ± 0.15 logMAR. There were two cases of significant overcorrection and two cases of significant undercorrection.

    Beginning at 6 weeks postPRK, mean corrected distance visual acuity (CDVA) was equal to the pre-enhancement level. The procedure had a safety index of 1.06.

    Six eyes (15%) lost 1 line of CDVA, but even in those eyes, CDVA at 3 months was 20/20 or 20/25.

    “Of course long-term results are necessary to evaluate the efficacy and safety of surface ablation as a touch-up technique,” said Dr. Dirisamer, cornea consultant, Ludwig-Maximilians-University of Munich, Germany, and co-owner SMILE EYES Clinic, Linz, Austria.

    “And, it is also necessary to compare outcomes using different enhancement techniques,” he added.

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