title: Three-dimensional optical coherence tomography-guided phototherapeutic keratectomy for granular corneal dystrophy.
abstract: OBJECTIVE
  To describe the potential use of three-dimensional optical coherence tomography (OCT)-guided phototherapeutic keratectomy (PTK) for granular corneal dystrophy.
  
  
  METHODS
  : Investigative case report.
  
  
  METHODS
  Three-dimensional volume data of 1310-nm high-speed swept-source OCT was used to simulate the effect of PTK performed for the removal of corneal opacity in a patient with granular corneal dystrophy.
  
  
  RESULTS
  The OCT projection view was used to visualize the reduction of the area of the opacity with progressively deeper simulated ablation to determine the appropriate ablation depth. The results of the actual PTK corresponded well with the preoperative evaluation data.
  
  
  CONCLUSIONS
  Three-dimensional OCT allows the simulation of PTK, and it is useful for objective preoperative and noninvasive assessments of corneal opacities.
authors: Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan.
authors: Hideki
authors: H
authors: Mori
authors: Masahiro
authors: M
authors: Miura
authors: Takuya
authors: T
authors: Iwasaki
authors: Hiroshi
authors: H
authors: Goto
authors: Yutaka
authors: Y
authors: Sakurai
authors: Yuji
authors: Y
authors: Watanabe
authors: Yoshiaki
authors: Y
authors: Yasuno
mesh_terms: D000368:Aged; D003198:Computer Simulation; D003315:Cornea / Q000601:surgery*; D003317:Corneal Dystrophies, Hereditary / Q000150:complications / Q000601:surgery*; D003318:Corneal Opacity / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D025321:Surgery, Computer-Assisted; D041623:Tomography, Optical Coherence / Q000379:methods*