PT  - JOURNAL ARTICLE
AU  - Ryan P McNabb
AU  - Dilraj S Grewal
AU  - Rajvi Mehta
AU  - Stefanie G Schuman
AU  - Joseph A Izatt
AU  - Tamer H Mahmoud
AU  - Glenn J Jaffe
AU  - Prithvi Mruthyunjaya
AU  - Anthony N Kuo
TI  - Wide field of view swept-source optical coherence tomography for peripheral retinal disease
AID  - 10.1136/bjophthalmol-2015-307480
DP  - 2016 Oct 01
TA  - British Journal of Ophthalmology
PG  - 1377--1382
VI  - 100
IP  - 10
4099  - http://bjo.bmj.com/content/100/10/1377.short
4100  - http://bjo.bmj.com/content/100/10/1377.full
SO  - Br J Ophthalmol2016 Oct 01; 100
AB  - Background/aims To assess peripheral retinal lesions and the posterior pole in single widefield optical coherence tomography (OCT) volumes.Methods A wide field of view (FOV) swept-source OCT (WFOV SSOCT) system was developed using a commercial swept-source laser and a custom sample arm consisting of two indirect ophthalmic lenses. Twenty-seven subjects with peripheral lesions (choroidal melanomas, choroidal naevi, sclerochoroidal calcification, retinitis pigmentosa, diabetic retinopathy, retinoschisis and uveitis) were imaged with the WFOV SSOCT. Volumes were taken in primary gaze. Using the optic nerve to fovea distance as a reference measurement, comparisons were made between the lateral FOV of the WFOV SSOCT, current generation spectral-domain OCT (SDOCT) and widefield scanning laser ophthalmoscopy (SLO) of the same eyes.Results Peripheral pathologies were captured with WFOV SSOCT in 26 of the 27 subjects. The one not captured was in the far nasal periphery and was not seen in the primary gaze volume. Posterior pole associated pathologies were captured in all subjects. Current generation SDOCT had a mean lateral FOV of 2.08±0.21 optic nerve to fovea distance units, WFOV SSOCT had an FOV of 4.62±0.62 units and SLO had an FOV of 9.35±1.02 units.Conclusions WFOV OCT can be used to examine both peripheral retinal pathology and the posterior pole within a single volume acquisition. SLO had the greatest FOV, but does not provide depth information. Future studies using widefield OCT systems will help further delineate the role of WFOV OCT to quantitatively assess and monitor peripheral retinal disease in three dimensions.