5 March 2021Evaluation of effects the ocular metrics (eye movements and ocular aberrations) have on image quality of in vivo retinal optical coherence tomography angiography (OCTA)
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Accurate and reproducible OCT angiography (OCTA) measurements are highly dependent on the overall phase stability of the sample. Raster-scanning OCT systems are vulnerable to eye motion, which makes phase correlation impossible if the retinal displacement is too large. Numerical methods exist to correct components of phase shifts due to the axial movement, but that due to lateral movement bigger, then imaging spot are not generally correctable. Real-time eye tracking provides a method to reduce the phase shifts caused by lateral eye movement. Here we report the advancements on monitoring ocular metrics during OCTA acquisition and its effects on image quality.
Kari V. Vienola,Denise Valente,John S. Werner,Ravi S. Jonnal, andRobert J. Zawadzki
"Evaluation of effects the ocular metrics (eye movements and ocular aberrations) have on image quality of in vivo retinal optical coherence tomography angiography (OCTA)", Proc. SPIE 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV, 116300O (5 March 2021); https://doi.org/10.1117/12.2579182
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Kari V. Vienola, Denise Valente, John S. Werner, Ravi S. Jonnal, Robert J. Zawadzki, "Evaluation of effects the ocular metrics (eye movements and ocular aberrations) have on image quality of in vivo retinal optical coherence tomography angiography (OCTA)," Proc. SPIE 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV, 116300O (5 March 2021); https://doi.org/10.1117/12.2579182