Coextensive synchronized SLO-OCT with adaptive optics for human retinal imaging

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Abstract

We describe the details of a multimodal retinal imaging system which combines adaptive optics (AO) with an integrated scanning light ophthalmoscopy (SLO) and optical coherence tomography (OCT) imaging system. The OCT subsystem consisted of a swept-source, Fourier-domain mode-locked (FDML) laser, with a very high A-scan rate (1.6 MHz), whose beam was raster scanned on the retina by two scanners—one resonant scanner and one galvanometer. The high sweep rate of the FDML permitted the SLO and OCT to utilize the same scanners for in vivo retinal imaging and, unlike existing multimodal systems, concurrently acquired SLO frames and OCT volumes with approximate en face correspondence at a rate of 6 Hz. The AO provided diffraction-limited cellular resolution for both imaging channels.

Original languageEnglish (US)
Pages (from-to)4219-4222
Number of pages4
JournalOptics Letters
Volume44
Issue number17
DOIs
StatePublished - Sep 1 2019

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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