Risk Factors for Retreatment Following Myopic LASIK with Femtosecond Laser and Custom Ablation for the Treatment of Myopia

Semin Ophthalmol. 2017;32(3):316-320. doi: 10.3109/08820538.2015.1088552. Epub 2016 Apr 6.

Abstract

Purpose: To identify risks factors for retreatment post-laser in situ keratomeliusis (LASIK).

Materials & methods: A retrospective chart review from December 2008 to September 2012 identified 1,402 patients (2,581 eyes) that underwent LASIK treatment for myopia with the Intralase™ FS, STAR S4 IR™ Excimer Laser, and WaveScan WaveFront™ technology. In this group, 83 patients were retreated. All charts were reviewed for preoperative age, gender, initial manifest refraction spherical equivalent (MRSE), total astigmatism, and iris registration.

Results: Increased incidence rates of retreatment post-LASIK were preoperative age >40 years (p < 0.001), initial MRSE > -3.0 D (p = 0.02), and astigmatism >1D (p = 0.001). Iris registration capture did not significantly reduce the retreatment rate (p = 0.12).

Conclusions: Risk factors for retreatment included preoperative age >40 years, initial MRSE > -3.0 D, and astigmatism >1D. There was no difference in retreatment rate for patients based on gender or iris registration capture.

Keywords: Enhancement; laser in situ keratomeliusis; vision correction.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Female
  • Follow-Up Studies
  • Humans
  • Keratomileusis, Laser In Situ / methods*
  • Lasers, Excimer / therapeutic use*
  • Male
  • Middle Aged
  • Myopia / physiopathology
  • Myopia / surgery*
  • Refraction, Ocular / physiology*
  • Retreatment
  • Retrospective Studies
  • Risk Factors
  • Treatment Outcome
  • Visual Acuity*
  • Young Adult