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Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
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LASIK versus PRK for high astigmatism.

Michael Mimouni1, Russell Pokroy2,3, Gilad Rabina4

  • 1Department of Ophthalmology, Rambam Health Care Campus, Affiliated to the Bruce and Ruth Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.

International Ophthalmology
|March 22, 2021
PubMed
Summary
This summary is machine-generated.

Laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) both effectively treat high myopic astigmatism. LASIK demonstrated a slight advantage over PRK in refractive outcomes for this patient group.

Keywords:
AstigmatismCylinderLASIKPRKRefractive surgery

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Area of Science:

  • Ophthalmology
  • Refractive Surgery

Background:

  • High myopic astigmatism presents a significant challenge for vision correction.
  • Laser-based refractive surgeries like LASIK and PRK offer alternatives to traditional methods.

Purpose of the Study:

  • To compare the refractive outcomes of LASIK versus PRK in patients with high myopic astigmatism (≥3 diopters).

Main Methods:

  • A retrospective matched comparative study was conducted.
  • 175 eyes undergoing LASIK and 175 eyes undergoing PRK for myopic astigmatism (3-6 D) were analyzed.
  • Postoperative follow-up was at least 30 days for LASIK and 60 days for PRK.

Main Results:

  • Both LASIK and PRK groups showed good refractive outcomes, with efficacy and safety indices near 1.0.
  • LASIK eyes had a statistically significant advantage in postoperative spherical equivalent and astigmatism correction compared to PRK eyes.
  • More PRK eyes were undertreated for both spherical equivalent and astigmatism compared to LASIK eyes.

Conclusions:

  • Both LASIK and PRK are effective for correcting high myopic astigmatism.
  • LASIK showed a mild superiority over PRK in achieving target refractive outcomes.