Open AccessFull ocular biometry through dual-depth whole-eye optical coherence tomography
Author(s) -
Hyung Jin Kim,
Minji Kim,
Min Gyu Hyeon,
Youngwoon Choi,
Beop Min Kim
Publication year - 2018
Publication title -
biomedical optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.9.000360
Subject(s) - optical coherence tomography , human eye , optics , anterior eye segment , retina , optical axis , pupil , computer science , ophthalmology , artificial intelligence , medicine , physics , cornea , lens (geology)
We propose a new method of determining the optical axis (OA), pupillary axis (PA), and visual axis (VA) of the human eye by using dual-depth whole-eye optical coherence tomography (OCT). These axes, as well as the angles "α" between the OA and VA and "κ" between PA and VA, are important in many ophthalmologic applications, especially in refractive surgery. Whole-eye images are reconstructed based on simultaneously acquired images of the anterior segment and retina. The light from a light source is split into two orthogonal polarization components for imaging the anterior segment and retina, respectively. The OA and PA are identified based on their geometric definitions by using the anterior segment image only, while the VA is detected through accurate correlation between the two images. The feasibility of our approach was tested using a model eye and human subjects.