High-speed optical coherence tomography of laser iridotomy.

Journal Article (Journal Article)


To describe high-speed (4000 axial scans/s) optical coherence tomography (OCT) findings in a patient with narrow angles.


Interventional case report.


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.


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.


A 1.3-microm wavelength OCT allows noncontact quantitative assessment of the angle and may be useful in the management of narrow-angle glaucoma.

Full Text

Duke Authors

Cited Authors

  • Chalita, MR; Li, Y; Smith, S; Patil, C; Westphal, V; Rollins, AM; Izatt, JA; Huang, D

Published Date

  • December 2005

Published In

Volume / Issue

  • 140 / 6

Start / End Page

  • 1133 - 1136

PubMed ID

  • 16376666

Pubmed Central ID

  • PMC1784116

Electronic International Standard Serial Number (EISSN)

  • 1879-1891

International Standard Serial Number (ISSN)

  • 0002-9394

Digital Object Identifier (DOI)

  • 10.1016/j.ajo.2005.06.054


  • eng