title: High-speed optical coherence tomography of laser iridotomy.
abstract: OBJECTIVE
  To describe high-speed (4000 axial scans/s) optical coherence tomography (OCT) findings in a patient with narrow angles.
  
  
  METHODS
  Interventional case report.
  
  
  METHODS
  A 56-year-old woman was found to have occludable narrow angles on OCT screening. This was confirmed by gonioscopy. Bilateral iridotomy was performed. Imaging of the angles was performed with a high-speed OCT prototype before and after iridotomy.
  
  
  RESULTS
  OCT showed narrow angle bilaterally. Cornea, sclera, scleral spur, trabecula, iris, and iris recess were visualized. After iridotomy, the OCT showed reduction of iris concavity and patent iridotomies. Quantitative measurements of trabecula-iris space area on the OCT images showed widening of the angles to nonoccludable values.
  
  
  CONCLUSIONS
  A 1.3-microm wavelength OCT allows noncontact quantitative assessment of the angle and may be useful in the management of narrow-angle glaucoma.
authors.affiliation: Cole Eye Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
authors.forename: Maria Regina
authors.initials: MR
authors.lastname: Chalita
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Scott
authors.initials: S
authors.lastname: Smith
authors.forename: Chetan
authors.initials: C
authors.lastname: Patil
authors.forename: Volker
authors.initials: V
authors.lastname: Westphal
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Rollins
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Izatt
authors.forename: David
authors.initials: D
authors.lastname: Huang
mesh_terms: D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D015812:Glaucoma, Angle-Closure / Q000175:diagnosis* / Q000601:surgery*; D006068:Gonioscopy; D006801:Humans; D032801:Iridectomy / Q000379:methods*; D007498:Iris / Q000473:pathology* / Q000601:surgery; D053685:Laser Therapy; D008875:Middle Aged; D041623:Tomography, Optical Coherence / Q000379:methods*