High-resolution wide-field OCT angiography with a self-navigation method to correct microsaccades and blinks

Xiang Wei, Tristan T. Hormel, Yukun Guo, Thomas S. Hwang, Yali Jia

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we demonstrate a novel self-navigated motion correction method that suppresses eye motion and blinking artifacts on wide-field optical coherence tomographic angiography (OCTA) without requiring any hardware modification. Highly efficient GPUbased, real-time OCTA image acquisition and processing software was developed to detect eye motion artifacts. The algorithm includes an instantaneous motion index that evaluates the strength of motion artifact on en face OCTA images. Areas with suprathreshold motion and eye blinking artifacts are automatically rescanned in real-time. Both healthy eyes and eyes with diabetic retinopathy were imaged, and the self-navigated motion correction performance was demonstrated.

Original languageEnglish (US)
Pages (from-to)3234-3245
Number of pages12
JournalBiomedical Optics Express
Volume11
Issue number6
DOIs
StatePublished - Jun 1 2020

ASJC Scopus subject areas

  • Biotechnology
  • Atomic and Molecular Physics, and Optics

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