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Purpose <p>To compare the functional outcomes between femtosecond laser-assisted cataract surgery (FLACS) and phacoemulsification in post-radial keratotomy (RK) cataract.</p> Setting <p>Postgraduate teaching institute in a corporate setting, based in Northern India.</p> Design <p>Retrospective comparative observational study.</p> Methods <p>The study included 70 post-RK eyes that underwent cataract surgery by FLACS in 38 eyes and by phacoemulsification in the remaining 32 eyes over the past 5&#xa0;years, with nuclear cataract grades II-IV. Preoperative astigmatism ranged from&#xa0;±&#xa0;0.50 to 5.50 D in both groups and was managed with Toric IOL implantation. Barrett True-K and SRK/T were used to calculate IOL power. Follow-up ranged from 1 to 4&#xa0;years.</p> Results <p>Incomplete Rhexis, Inadequate Nucleotomy, and wound dehiscence were noted constraints in both groups. The mean postoperative uncorrected visual acuity (LogMAR) was 0.23&#xa0;±&#xa0;0.09 in the PHACO group (<i>n</i>&#xa0;=&#xa0;32), 0.22&#xa0;±&#xa0;0.06 in the FLACS group (<i>n</i>&#xa0;=&#xa0;38), and 0.22&#xa0;±&#xa0;0.08 in the combined group, with a<i> P </i>value of 0.885. Residual astigmatism or spherical error ranged from plus or minus 0.75 to 3.25 dioptres. The FLACS group had a higher mean astigmatism correction (1D) than the phacoemulsification group (0.25D), attributable to precision in incision, rhexis, Nucleotomy, and rotational stability of the Toric IOL implant.</p> Conclusions <p>The Barrett True-K&#xa0;formula provided better predictive accuracy for the presumed IOL power than SRK/T in these cases. Both groups showed statistically significant improvement after FLACS or phacoemulsification, with slightly better outcomes after FLACS with laser energy modulation.</p>

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Comparison of functional outcomes between femtosecond laser-assisted cataract surgery and phacoemulsification in post-radial keratotomy cataract

  • 期刊论文

  • 发表日期：

    2026年3月16日

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  • Jitendra Kumar Singh Parihar,
  • Mahipal Singh Sachdev,
  • Suhani Dhar,
  • Meenakshi Sharma,
  • Ashwini Kumar Singh Parihar

摘要

Purpose

To compare the functional outcomes between femtosecond laser-assisted cataract surgery (FLACS) and phacoemulsification in post-radial keratotomy (RK) cataract.

Setting

Postgraduate teaching institute in a corporate setting, based in Northern India.

Design

Retrospective comparative observational study.

Methods

The study included 70 post-RK eyes that underwent cataract surgery by FLACS in 38 eyes and by phacoemulsification in the remaining 32 eyes over the past 5 years, with nuclear cataract grades II-IV. Preoperative astigmatism ranged from ± 0.50 to 5.50 D in both groups and was managed with Toric IOL implantation. Barrett True-K and SRK/T were used to calculate IOL power. Follow-up ranged from 1 to 4 years.

Results

Incomplete Rhexis, Inadequate Nucleotomy, and wound dehiscence were noted constraints in both groups. The mean postoperative uncorrected visual acuity (LogMAR) was 0.23 ± 0.09 in the PHACO group (n = 32), 0.22 ± 0.06 in the FLACS group (n = 38), and 0.22 ± 0.08 in the combined group, with a P value of 0.885. Residual astigmatism or spherical error ranged from plus or minus 0.75 to 3.25 dioptres. The FLACS group had a higher mean astigmatism correction (1D) than the phacoemulsification group (0.25D), attributable to precision in incision, rhexis, Nucleotomy, and rotational stability of the Toric IOL implant.

Conclusions

The Barrett True-K formula provided better predictive accuracy for the presumed IOL power than SRK/T in these cases. Both groups showed statistically significant improvement after FLACS or phacoemulsification, with slightly better outcomes after FLACS with laser energy modulation.