title: Refractive outcomes of laser-assisted subepithelial keratectomy for myopia, hyperopia, and astigmatism using a 213 nm wavelength solid-state laser.
abstract: OBJECTIVE
  To study the visual and refractive outcomes after laser-assisted subepithelial keratectomy (LASEK) performed with a 213 nm solid-state laser for a broad range of refractive errors.
  
  
  METHODS
  Private practice, Jersey, United Kingdom.
  
  
  METHODS
  Case series.
  
  
  METHODS
  The LASEK was performed using a Pulzar Z1 213 nm solid-state laser. Manifest refraction and uncorrected (UDVA) and corrected (CDVA) distance visual acuities were measured preoperatively and 2 and 6 months postoperatively. Accuracy, safety, efficacy, and stability were assessed at 6 months.
  
  
  RESULTS
  The study enrolled 245 eyes (134 patients). The preoperative spherical equivalent (SE) refractive errors ranged from -9.50 to +6.50 diopters (D); 24 eyes had more than 2.50 D of astigmatism. At 6 months, 60.4% of eyes were within ±0.25 D of the intended SE, 89.4% were within ±0.50 D, and 97.9% were within ±1.00 D. No eye lost 2 or more lines of CDVA; 95.5% of eyes were unchanged or gained 1 line. The mean cylinder power decreased from -0.98 ± 1.17 D to -0.14 ± 0.28 DC at 6 months. The mean SE was unchanged over the follow-up period; -0.01 ± 0.57 D and -0.01 ± 0.55 D at 2 months and 6 months, respectively.
  
  
  CONCLUSIONS
  Laser-assisted subepithelial keratectomy performed using the 213 nm wavelength solid-state laser was safe, accurate, and effective for the treatment of myopia, hyperopia, and astigmatism.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: Jersey Vision Correction, Little Grove Clinic, St. Lawrence, Jersey, United Kingdom.
authors.forename: Sunil
authors.initials: S
authors.lastname: Shah
authors.forename: Amy L
authors.initials: AL
authors.lastname: Sheppard
authors.forename: Jennifer
authors.initials: J
authors.lastname: Castle
authors.forename: David
authors.initials: D
authors.lastname: Baker
authors.forename: Phillip J
authors.initials: PJ
authors.lastname: Buckhurst
authors.forename: Shehzad A
authors.initials: SA
authors.lastname: Naroo
authors.forename: Leon N
authors.initials: LN
authors.lastname: Davies
authors.forename: James S
authors.initials: JS
authors.lastname: Wolffsohn
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000503:physiopathology / Q000601:surgery*; D049008:Keratectomy, Subepithelial, Laser-Assisted / Q000379:methods*; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000503:physiopathology / Q000601:surgery*; D011446:Prospective Studies; D012029:Refraction, Ocular / Q000502:physiology*; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*; D055815:Young Adult