The Safety and Predictability of Implanting Autologous Lenticule Obtained by SMILE for Hyperopia

J Refract Surg. 2015 Jun;31(6):374-9. doi: 10.3928/1081597X-20150521-03.

Abstract

Purpose: To evaluate the safety, effectiveness, stability, and predictability of implanting autologous lenticules obtained from small incision lenticule extraction for the treatment of hyperopia.

Methods: Five patients (10 eyes) with one myopic eye and one hyperopic eye were enrolled. The myopic eye was treated with small incision lenticule extraction; a lenticule was extracted and subsequently implanted in the hyperopic eye. Follow-up was at 1 day, 1, 3, 6, and 9 months, and 1 year postoperatively. Patients received a complete ophthalmologic examination at each visit, including uncorrected distance visual acuity, corrected distance visual acuity, anterior segment optical coherence tomography, and corneal topography.

Results: There were no complications in any eye during follow-up. Compared with preoperative levels, at the last follow-up visit the eyes with lenticule implantation showed mean spherical equivalent reduced by 5.53 diopters (residual spherical equivalent was +1.13 to -2.63 diopters), mean uncorrected distance visual acuity increased approximately two lines (approximately 20/63 to 20/40 Snellen), and corrected distance visual acuity in 4 (80%) eyes gained one line, 2 (40%) eyes gained two lines, and 1 (20%) eye gained more than two lines. There was no significant difference (P > .05) in spherical equivalent compared with 1 day postoperatively and the last follow-up visit. Corneal topography showed that the lenticule was uniform and located well; anterior segment optical coherence tomography images showed that the lenticule was transparent and the demarcation line was visible.

Conclusions: Implanting an autologous lenticule obtained by small incision lenticule extraction for hyperopia might be safe, effective, and stable, but its predictability should be improved in the future.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anisometropia / surgery
  • Corneal Stroma / surgery
  • Corneal Stroma / transplantation*
  • Corneal Topography
  • Female
  • Follow-Up Studies
  • Humans
  • Hyperopia / physiopathology
  • Hyperopia / surgery*
  • Keratomileusis, Laser In Situ
  • Lasers, Excimer / therapeutic use
  • Male
  • Refraction, Ocular / physiology
  • Tissue Transplantation*
  • Tomography, Optical Coherence
  • Transplantation, Autologous
  • Visual Acuity / physiology
  • Young Adult