Association of narrow angles with anterior chamber area and volume measured with anterior-segment optical coherence tomography

Ren Yi Wu, Monisha E. Nongpiur, Ming Guang He, Lisandro M. Sakata, David S Friedman, Yiong Huak Chan, Raghavan Lavanya, Tien Yin Wong, Tin Aung

Research output: Contribution to journalArticle

Abstract

Objectives: To describe the measurement of anterior chamber area and anterior chamber volume by anteriorsegment optical coherence tomography and to investigate the association of these parameters with the presence of narrow angles. Methods: This was a cross-sectional study of subjects aged at least 50 years without ophthalmic symptoms recruited from a community clinic. All participants underwent standardized ocular examination and anterior-segment optical coherence tomography. Customized software was used to measure anterior chamber area (cross-sectional area bounded by the corneal endothelium, anterior surface of iris, and lens within the pupil) and anterior chamber volume (calculated by rotating the anterior chamber area 360° around a vertical axis through the midpoint of the anterior chamber area). An eye was considered to have narrow angles if the posterior pigmented trabecular meshwork was not visible for at least 180° on gonioscopy with the eye in the primary position. Results: A total of 1922 subjects were included in the final analyses, 317 (16.5%) of whom had narrow angles. Mean anterior chamber area (15.6 vs 21.1 mm2; P3; P

Original languageEnglish (US)
Pages (from-to)569-574
Number of pages6
JournalArchives of Ophthalmology
Volume129
Issue number5
DOIs
StatePublished - May 2011

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Optical Coherence Tomography
Anterior Chamber
Gonioscopy
Trabecular Meshwork
Corneal Endothelium
Iris
Pupil
Lenses
Software
Cross-Sectional Studies

ASJC Scopus subject areas

  • Ophthalmology

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Association of narrow angles with anterior chamber area and volume measured with anterior-segment optical coherence tomography. / Wu, Ren Yi; Nongpiur, Monisha E.; He, Ming Guang; Sakata, Lisandro M.; Friedman, David S; Chan, Yiong Huak; Lavanya, Raghavan; Wong, Tien Yin; Aung, Tin.

In: Archives of Ophthalmology, Vol. 129, No. 5, 05.2011, p. 569-574.

Research output: Contribution to journalArticle

Wu, Ren Yi ; Nongpiur, Monisha E. ; He, Ming Guang ; Sakata, Lisandro M. ; Friedman, David S ; Chan, Yiong Huak ; Lavanya, Raghavan ; Wong, Tien Yin ; Aung, Tin. / Association of narrow angles with anterior chamber area and volume measured with anterior-segment optical coherence tomography. In: Archives of Ophthalmology. 2011 ; Vol. 129, No. 5. pp. 569-574.
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AU - Chan, Yiong Huak

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