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Title: Ultrawide field, distortion-corrected ocular shape estimation with MHz optical coherence tomography (OCT)
Authors: Tan, Bingyao
McNabb, Ryan P.
Zheng, Feihui
Ci Sim, Yin
Yao, Xinwen
Chua, Jacqueline 
Ang, Marcus 
Hoang, Quan, V 
Kuo, Anthony N.
Schmetterer, Leopold 
Issue Date: 23-Aug-2021
Publisher: The Optical Society
Citation: Tan, Bingyao, McNabb, Ryan P., Zheng, Feihui, Ci Sim, Yin, Yao, Xinwen, Chua, Jacqueline, Ang, Marcus, Hoang, Quan, V, Kuo, Anthony N., Schmetterer, Leopold (2021-08-23). Ultrawide field, distortion-corrected ocular shape estimation with MHz optical coherence tomography (OCT). Biomedical Optics Express 12 (9) : 5770-5781. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Ocular deformation may be associated with biomechanical alterations in the structures of the eye, especially the cornea and sclera in conditions such as keratoconus, congenital glaucoma, and pathological myopia. Here, we propose a method to estimate ocular shape using an ultrawide field MHz swept-source optical coherence tomography (SS-OCT) with a Fourier Domain Mode-Locked (FDML) laser and distortion correction of the images. The ocular biometrics for distortion correction was collected by an IOLMaster 700, and localized Gaussian curvature was proposed to quantify the ocular curvature covering a field-of-view up to 65°×62°. We achieved repeatable curvature shape measurements (intraclass coefficient = 0.88 ± 0.06) and demonstrated its applicability in a pilot study with individuals (N = 11) with various degrees of myopia. © 2021 Optical Society of America.
Source Title: Biomedical Optics Express
ISSN: 2156-7085
DOI: 10.1364/boe.428430
Rights: Attribution 4.0 International
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