title: Diamond burr superficial keratectomy with mitomycin C for corneal scarring and high corneal astigmatism after pterygium excision.
abstract: BACKGROUND
  The purpose of this paper is to report the successful treatment of corneal scarring and high corneal astigmatism secondary to previous pterygium surgery with diamond burr superficial keratectomy using mitomycin C.
  
  
  METHODS
  Four patients with corneal scarring and high corneal astigmatism related to previous pterygium surgery underwent diamond burr superficial keratectomy with application of mitomycin C. Anterior segment photography and corneal topographic analysis were obtained preoperatively and postoperatively in all patients.
  
  
  RESULTS
  Six months after surgery, corneal astigmatism and corneal aberrations were reduced in all patients. A clear cornea was achieved in all cases. No complications were noted during the follow-up period.
  
  
  CONCLUSIONS
  Diamond burr superficial keratectomy with application of mitomycin C is a potentially effective and simple procedure for treating patients with corneal scarring and high corneal astigmatism secondary to previous pterygium surgery.
authors.affiliation: Beyoglu Eye Research and Training Hospital, Istanbul, Turkey.
authors.forename: Engin Bilge
authors.initials: EB
authors.lastname: Ozgurhan
authors.forename: Necip
authors.initials: N
authors.lastname: Kara
authors.forename: Aydin
authors.initials: A
authors.lastname: Yildirim
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Alkin
authors.forename: Ercument
authors.initials: E
authors.lastname: Bozkurt
authors.forename: Ahmet
authors.initials: A
authors.lastname: Demirok
keywords: astigmatism; diamond burr superficial keratectomy; pterygium surgery