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Spectral OCT is ‘another leap’ for imaging

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WAIKOLOA, Hawaii — Spectral ultra-high-speed, ultra-high-resolution optical coherence tomography is “another leap” in retinal imaging, according to one clinician.

“It works 100 times faster than ultra-high-resolution OCT,” according to Jay S. Duker, MD, who spoke about the technology here at Hawaii 2005, The Royal Hawaiian Eye Meeting.

Dr. Duker explained that this technology creates images with up to 2.1 µm of sensitivity and up to 16,000 axial scans per second.

“You can even enlarge the image without any loss of sensitivity,” Dr. Duker said. Using more modest pixel densities, larger numbers of images can be acquired, he said.

Dr. Duker added that ultra-high-speed ultra-high-resolution OCT can provide much more information on the morphology of intraretinal layers than conventional OCT images.

Another advantage, Dr. Duker said, is that the technology enables three-dimensional imaging, rendering and mapping of retinal microstructures.