High-speed optical coherence tomography of laser iridotomy

Maria Regina Chalita, Yan Li, Scott Smith, Chetan Patil, Volker Westphal, Andrew M. Rollins, Joseph A. Izatt, David Huang

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

PURPOSE: To describe high-speed (4000 axial scans/s) optical coherence tomography (OCT) findings in a patient with narrow angles. DESIGN: 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-μm wavelength OCT allows noncontact quantitative assessment of the angle and may be useful in the management of narrow-angle glaucoma.

Original languageEnglish (US)
Pages (from-to)1133-1136
Number of pages4
JournalAmerican journal of ophthalmology
Volume140
Issue number6
DOIs
StatePublished - Dec 1 2005

ASJC Scopus subject areas

  • Ophthalmology

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    Chalita, M. R., Li, Y., Smith, S., Patil, C., Westphal, V., Rollins, A. M., Izatt, J. A., & Huang, D. (2005). High-speed optical coherence tomography of laser iridotomy. American journal of ophthalmology, 140(6), 1133-1136. https://doi.org/10.1016/j.ajo.2005.06.054