Pilot study of hyperopic LASIK using the solid-state laser technology

Graefes Arch Clin Exp Ophthalmol. 2013 Mar;251(3):977-84. doi: 10.1007/s00417-012-2166-6. Epub 2012 Oct 5.

Abstract

Background: To evaluate and report the visual, refractive, and aberrometric outcomes of LASIK for the correction of low to moderate hyperopia in a pilot group using a commercially available solid-state laser

Methods: Prospective pilot study including 11 consecutive eyes with low to moderate hyperopia of six patients undergoing LASIK surgery using the Pulzar Z1 solid-state laser (CustomVis Laser Pty Ltd., currently CV Laser). Visual, refractive, and aberrometric changes were evaluated. Potential complications were evaluated as well. Mean follow-up time was 6.6 months (range, 3 to 11 months).

Results: A significant improvement in LogMAR uncorrected distance visual acuity (UDVA) was observed postoperatively (p = 0.01). No significant change was detected in LogMAR corrected distance visual acuity (CDVA) (p = 0.21). Postoperative LogMAR UDVA was 0.1 (about 20/25) or better in ten eyes (90.9 %). Mean overall efficacy and safety indices were 1.03 and 1.12. Postoperatively, no losses of lines of CDVA were observed. Postoperative spherical equivalent was within ± 1.00 D in ten eyes (90.9 %). With regard to aberrations, no statistically significant changes were found in higher order and primary coma RMS postoperatively (p ≥ 0.21), and only minimal but statistically significant negativization of primary spherical aberration (p = 0.02) was observed. No severe complications were observed.

Conclusion: LASIK surgery using the solid-state laser technology seems to be a useful procedure for the correction of low to moderate hyperopia, with minimal induction of higher order aberrations.

MeSH terms

  • Aberrometry
  • Adult
  • Female
  • Follow-Up Studies
  • Humans
  • Hyperopia / physiopathology
  • Hyperopia / surgery*
  • Intraoperative Complications
  • Keratomileusis, Laser In Situ*
  • Lasers, Solid-State / therapeutic use*
  • Male
  • Pilot Projects
  • Postoperative Complications
  • Prospective Studies
  • Refraction, Ocular / physiology
  • Treatment Outcome
  • Visual Acuity / physiology
  • Young Adult