Laser in situ keratomileusis after penetrating keratoplasty

J Refract Surg. Jul-Aug 2000;16(4):431-7.

Abstract

Purpose: To determine the safety, efficacy, predictability, and stability of laser in situ keratomileusis (LASIK) to correct myopia and myopic astigmatism in eyes with prior penetrating keratoplasty.

Methods: Eight eyes of 8 patients with penetrating keratoplasty had significant postoperative refractive error. Each eye received LASIK 1 year or more after penetrating keratoplasty. All were followed for 6 months or more. All patients were treated with the Chiron Technolas 217 excimer laser and the Automated Corneal Shaper microkeratome.

Results: Mean spherical equivalent refraction decreased from -4.50 D (range, -3.00 to -7.25 D) to -0.75 D (range, -1.50 to +0.50 D) and the mean preoperative astigmatism decreased from 3.50 D (range, 1.50 to 5.00 D) to 1.25 D (range, 0.75 to 2.00 D). Uncorrected visual acuity improved by at least two Snellen lines in all eyes. Best spectacle-corrected visual acuity did not change in four eyes (50%) and improved in three eyes (37.5%).

Conclusion: LASIK effectively reduced low and moderate myopia and myopic astigmatism following penetrating keratoplasty.

Publication types

  • Comparative Study

MeSH terms

  • Astigmatism / diagnosis
  • Astigmatism / etiology
  • Astigmatism / surgery*
  • Cell Count
  • Cornea / anatomy & histology
  • Cornea / surgery
  • Corneal Topography
  • Endothelium, Corneal / cytology
  • Female
  • Humans
  • Keratomileusis, Laser In Situ*
  • Keratoplasty, Penetrating / adverse effects*
  • Male
  • Myopia / diagnosis
  • Myopia / etiology
  • Myopia / surgery*
  • Reoperation
  • Visual Acuity