title: Fourier analysis of single running suture adjustment in penetrating and deep lamellar keratoplasty.
abstract: OBJECTIVE
  To prospectively evaluate clinical and visual results of running suture adjustment after keratoplasty.
  
  
  METHODS
  Thirty-seven eyes of 33 patients received running suture adjustment after keratoplasty. Changes in uncorrected visual acuity, distance best spectacle-corrected visual acuity (BSCVA), refraction, and Fourier analysis constituents were assessed before and after suture adjustment.
  
  
  RESULTS
  Thirty eyes, which had improvement of distance BSCVA soon after suture adjustment, maintained improvement at 1 year, whereas 7 eyes with decreased distance BSCVA soon after suture adjustment experienced no improvement at 1 year. Patients with poor distance BSCVA at 1 year had significantly higher high order irregularity than patients with better distance BSCVA despite similar cylindrical power outcomes.
authors.affiliation: Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan. fwiw1193@mb.infoweb.ne.jp
authors.forename: Minako
authors.initials: M
authors.lastname: Kaido
authors.forename: Murat
authors.initials: M
authors.lastname: Dogru
authors.forename: Eiki
authors.initials: E
authors.lastname: Goto
authors.forename: Jun
authors.initials: J
authors.lastname: Shimazaki
authors.forename: Kazuo
authors.initials: K
authors.lastname: Tsubota
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005583:Fourier Analysis; D006801:Humans; D007640:Keratoconus / Q000601:surgery*; D015948:Keratoplasty, Penetrating / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013536:Suture Techniques; D013537:Sutures; D016896:Treatment Outcome; D014792:Visual Acuity