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Complete 360° circumferential SSOCT gonioscopy of the iridocorneal angle

Publication ,  Journal Article
McNabb, RP; Kuo, AN; Izatt, JA
Published in: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
January 1, 2014

The ocular iridocorneal angle is generally an optically inaccessible area when viewed directly through the cornea due to the high angle of incidence required and the large index of refraction difference between air and cornea (nair = 1.000 and ncornea = 1.376) resulting in total internal reflection. Gonioscopy allows for viewing of the angle by removing the aircornea interface through the use of a special contact lens on the eye. Gonioscopy is used clinically to visualize the angle directly but only en face. Optical coherence tomography (OCT) has been used to image the angle and deeper structures via an external approach. Typically, this imaging technique is performed by utilizing a conventional anterior segment OCT scanning system. However, instead of imaging the apex of the cornea, either the scanner or the subject is tilted such that the corneoscleral limbus is orthogonal to the optical axis of the scanner requiring multiple volumes to obtain complete circumferential coverage of the ocular angle. We developed a novel gonioscopic OCT (GOCT) system that images the entire ocular angle within a single volume via an "internal" approach through the use of a custom radially symmetric gonioscopic contact lens. We present, to our knowledge, the first complete 360° circumferential volumes of the iridocorneal angle from a direct, internal approach.

Duke Scholars

Published In

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

DOI

ISSN

1605-7422

Publication Date

January 1, 2014

Volume

8930
 

Citation

APA
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ICMJE
MLA
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McNabb, R. P., Kuo, A. N., & Izatt, J. A. (2014). Complete 360° circumferential SSOCT gonioscopy of the iridocorneal angle. Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 8930. https://doi.org/10.1117/12.2039574
McNabb, R. P., A. N. Kuo, and J. A. Izatt. “Complete 360° circumferential SSOCT gonioscopy of the iridocorneal angle.” Progress in Biomedical Optics and Imaging - Proceedings of SPIE 8930 (January 1, 2014). https://doi.org/10.1117/12.2039574.
McNabb RP, Kuo AN, Izatt JA. Complete 360° circumferential SSOCT gonioscopy of the iridocorneal angle. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. 2014 Jan 1;8930.
McNabb, R. P., et al. “Complete 360° circumferential SSOCT gonioscopy of the iridocorneal angle.” Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 8930, Jan. 2014. Scopus, doi:10.1117/12.2039574.
McNabb RP, Kuo AN, Izatt JA. Complete 360° circumferential SSOCT gonioscopy of the iridocorneal angle. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. 2014 Jan 1;8930.

Published In

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

DOI

ISSN

1605-7422

Publication Date

January 1, 2014

Volume

8930