title: Phototherapeutic keratectomy in Salzmann's nodular degeneration.
abstract: OBJECTIVE
  To describe the outcome in vision and refraction of phototherapeutic keratectomy (PTK) in Salzmann's nodular degeneration (SND).
  
  
  METHODS
  Five eyes of four patients underwent PTK with the objective of restoring an acceptable refractive status and improving visual acuity. This surgical technique aims to make the nodules level with the corneal surface using an excimer laser.
  
  
  RESULTS
  Best corrected visual acuity (BCVA) improved in all five eyes. Astigmatism was reduced in four eyes and increased somewhat in one. During the observation period one eye suffered a late recurrence that required a penetrating graft.
  
  
  CONCLUSIONS
  Salzmann's nodular degeneration is a rare disease that is sometimes difficult to diagnose as it has some resemblance to other diseases. The aetiology of the disease is unknown. Phototherapeutic keratectomy is a safe and effective mode of treatment. Recurrences occur with time.
authors.affiliation: Department of Ophthalmology, University Hospital, University of Linköping, Linköping, Sweden.
authors.forename: Johan
authors.initials: J
authors.lastname: Germundsson
authors.forename: Per
authors.initials: P
authors.lastname: Fagerholm
mesh_terms: D000328:Adult; D003317:Corneal Dystrophies, Hereditary / Q000601:surgery*; D019781:Corneal Topography; D005260:Female; D006801:Humans; D054018:Lasers, Excimer; D008297:Male; D008875:Middle Aged; D018903:Photorefractive Keratectomy / Q000379:methods*; D012029:Refraction, Ocular / Q000502:physiology; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology