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Patency of small laser iridotomy evaluated using anterior-segment optical coherence tomography
Authors Nakabayashi S, Kawai M, Yamaguchi T, Yoshida A
Received 10 January 2014
Accepted for publication 28 January 2014
Published 21 March 2014 Volume 2014:8 Pages 595—597
DOI https://doi.org/10.2147/OPTH.S60405
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 3
Seigo Nakabayashi, Motofumi Kawai, Toru Yamaguchi, Akitoshi Yoshida
Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
Abstract: We report the case of a patient with recurrent acute angle-closure glaucoma who had undergone a previous laser iridotomy. Because the initial iridotomy was small, patency could not be determined by slit-lamp examination. Therefore, anterior-segment optical coherence tomography was used to evaluate the patency. Cross-sectional images showed the presence of a membrane with an anterior bowing configuration at the base of the iridotomy, suggesting that recurrent pupillary block was the causative mechanism. A repeat laser iridotomy was performed, with a resultant decrease in the intraocular pressure and widening of the anterior chamber angle. Anterior-segment optical coherence tomography may be helpful to confirm the status of a laser iridotomy, especially when the iridotomy is small.
Keywords: anterior-segment optical coherence tomography, laser iridotomy, acute angle-closure glaucoma
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