Original articleUltra-Widefield Steering-Based Spectral-Domain Optical Coherence Tomography Imaging of the Retinal Periphery
Section snippets
Methods
The procedures used in this research adhered to the tenets of the Declaration of Helsinki, and Institutional Review Board approval for this study was obtained from the local Ethics Committee. A total of 124 consecutive eyes with previously diagnosed peripheral retinal findings underwent UWF steering-based SD OCT imaging from January 2014 to May 2015. Fifty-six eyes with advanced cataract, poorly dilating pupils, and poor fixation, and patients with limited cooperation were excluded. Subjects
Results
In all 68 eyes successfully imaged, there was no evidence of macular disease. The vitreoretinal interface and choroidal-scleral boundary were clearly visible in all examined eyes. Nineteen different peripheral findings were imaged in the 68 eyes (Supplemental Table 1, available at www.aaojournal.org). Among these, the most prevalent were retinal hole in 26.5% (18/68, Fig 2), cystic retinal tuft in 16.1% (11/68, Supplemental Fig 6, available at www.aaojournal.org), typical degenerative senile
Discussion
In this study, we used a UWF steering technique to register UWF color images with corresponding peripheral SD OCT scans, which allowed an unprecedented acquisition of high-resolution cross-sectional structural information of a variety of peripheral retinal entities and pathologies. We also used this approach to assemble a continuous, near 200° SD OCT montage image from retinal periphery to periphery (Fig 3B).
Carrai et al13 reported on wide-field SD OCT imaging in central serous
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Supplemental material is available at www.aaojournal.org.
Financial Disclosure(s): The author(s) have made the following disclosure(s): N.C.: Received honoraria as a speaker for Optos Plc.
Supported by the National Eye Institute (K12EY022299 to RCR).
Author Contributions:
Conception and design: Choudhry, Rao
Data collection: Choudhry, Golding, Manry, Rao
Analysis and interpretation: Choudhry, Golding, Manry, Rao
Obtained funding: Rao
Overall responsibility: Choudhry, Rao