title: Lasso procedure to revise overcorrection with radial keratotomy.
abstract: OBJECTIVE
  To report three patients who underwent the lasso procedure to revise overcorrection with radial keratotomy.
  
  
  METHODS
  Case report and review of the literature.
  
  
  RESULTS
  Four eyes of three patients who had undergone radial keratotomy with resultant hyperopic overcorrection underwent a lasso procedure. Before the procedure, average cycloplegic refraction spherical equivalent was +3.656 +/- 1.352 diopters, and average manifest refraction spherical equivalent was +2.250 +/- 0.621 diopters. A 10.0 monofilament nylon suture was placed in a circumferencial manner through the corneal stroma and overlapping the old radial keratotomy incisions. At 1 month postoperatively, best-corrected visual acuity was 20/20 in all four eyes, with average cycloplegic refraction spherical equivalent +0.438 +/- 1.423 diopters and average manifest refraction spherical equivalent -0.156 +/- 1.147 diopters. Mean delta cycloplegic refraction spherical equivalent was 3.219 +/- 1.724.
  
  
  CONCLUSIONS
  The lasso procedure provides an immediate solution for symptomatic overcorrected hyperopic eyes after radial keratotomy. Predictability and long-term stability necessitate further follow-up.
authors.affiliation: Department of Ophthalmology and Visual Science, University of Texas Medical School at Houston, 77030, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Miyashiro
authors.forename: R W
authors.initials: RW
authors.lastname: Yee
authors.forename: G
authors.initials: G
authors.lastname: Patel
authors.forename: Y
authors.initials: Y
authors.lastname: Karas
authors.forename: R B
authors.initials: RB
authors.lastname: Grene
mesh_terms: D000328:Adult; D003319:Corneal Stroma / Q000601:surgery*; D006801:Humans; D006956:Hyperopia / Q000209:etiology / Q000601:surgery*; D007646:Keratotomy, Radial / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery; D013508:Ophthalmologic Surgical Procedures; D012029:Refraction, Ocular; D012086:Reoperation; D013536:Suture Techniques; D014792:Visual Acuity