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    How wide-field SS-OCT expands spectrum of normal peripheral retina

    Wide-field retinal imaging can be performed using a commercially available swept-source optical coherence tomography (SS-OCT) platform (DRI OCT Triton, Topcon) and only the internal fixation light for patient navigation provided detailed images of both normal and pathologic peripheral retinal findings.

    “In 2016, we published a paper describing our experience with ultra-widefield Spectral-Domain OCT (SD-OCT) using a system with a 30° steerable lens (Spectralis, Heidelberg Engineering) [Ophthalmology. 2016;123(6):1368-74],” said Netan Choudhry, MD, founder and medical director, Vitreous Retina Macula Specialists of Toronto, Canada. “Recognizing that not all clinicians have access to that device, as a next step we expanded our work to investigate the wide-field imaging capabilities of a stationary device using the internal fixation light only.”

    Their experience showed that montages assembled from single-line scans provided high quality images with excellent anatomic details and that correlated with published histopathological findings. Dr. Choudhry believed this approach has great potential value for clinical and research applications.

    The feasibility and performance of wide-field SS-OCT was evaluated in an observational study that included 31 eyes of patients ages 18 to 85 years. All patients had previously diagnosed retinal findings that represented a broad spectrum of pathologies.

    Common diagnosis

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