Feasibility of peripheral OCT imaging using a novel integrated SLO ultra-widefield imaging swept-source OCT device

Abstract

Purpose To describe the feasibility of peripheral OCT imaging in retinal diseases using a novel full-field device. Methods A total of 134 consecutive eyes were referred and imaged on the Optos Silverstone swept-source OCT (SS-OCT) (Optos PLC; Dunfermline, UK). Scanning laser ophthalmoscope (SLO) images and the associated SS-OCT images were obtained in the posterior pole, mid-periphery or far periphery based on the nature of the referral and on new areas of interest observed in the optomap images at the time of imaging. Results A total of 134 eyes (96 patients) were enrolled in the study. One hundred and twenty-five eyes (91 patients) with 38 retinal pathologies were prospectively assessed and 9 eyes (5 patients) were excluded due to incomplete image acquisition. The average age of the subjects was 54 years (range 21–92 years). Thirty-nine out of 125 eyes (31%) had macular pathologies. Eighty-six out of 125 eyes (69%) had peripheral only pathologies, an area which cannot be visualized by standard OCT devices with a 50 degree field-of-view. Conclusions The ability to capture peripheral pathologies using an integrated SLO-UWF imaging with full-field swept-source provided high-grade anatomical insight that confirmed the medical and surgical management in a majority of cases. Its use in the mid- and far periphery provides a holistic clinical picture, which can potentially aid in the understanding of various retinal pathologies.

The Role of Widefield and Ultra Widefield Optical Coherence Tomography in the Diagnosis and Management of Vitreoretinal Diseases

“…Indeed, in a case series of 125 eyes, Sodhi et al found that eighty-six out of 125 eyes (69%) had peripheral retinal lesions. Therefore, the UWF-OCT can provide further information on the area that cannot be visualized by standard OCT devices with a 50-degree field of view, thus providing a holistic clinical picture, which can potentially aid in understanding the various retinal pathologies [ 19 ].…”

Advances in Optical Coherence Tomography Imaging Technology and Techniques for Choroidal and Retinal Disorders

“…Another Optos OCT device, the Optos’ Monaco ® (Optos PLC, Dunfermline, UK), integrates UWF imaging with SD-OCT for a 200-degree single-capture image in less than 0.5 s [ 95 ]. Integration of these advances to capture the peripheral retina allows for peripheral OCT of retinal diseases including retinal tears, retinal holes, retinoschisis, retinal tuft, lattice degeneration, CSCR, choroidal nevi, and choroidal lesions ( Figure 7 ) [ 96 ].…”

“…( C ) A retinal detachment in the peripheral retina. Reprinted with permission from Sodhi et al [ 96 ]. Feasibility of peripheral OCT imaging using a novel integrated SLO ultra-widefield imaging swept-source OCT device.…”

Advanced ultrawide-field optical coherence tomography angiography identifies previously undetectable changes in biomechanics-related parameters in nonpathological myopic fundus

“…The ultrawide-field OCTA is the SS-OCT–based imaging system of ocular fundus structure and vasculature. The ultrawide-field OCTA devices currently employed in the clinic include Xephilio OCT-S1 (Canon) ( Takahashi et al, 2019 ), PLEX Elite™ 9000 (Carl Zeiss Meditech) ( Ledesma-Gil et al, 2021 ), Silverstone™ (Optos) ( Sodhi et al, 2021 ), and Triton™ DRI (Topcon) ( Sun et al, 2019 ). MHz FDML SS-OCT system (Optores) has high scan speed; however, it has not been approved for clinical application ( Tan et al, 2021 ).…”