Abstract

PurposeTo investigate whether ultra-widefield (UWF) swept-source optical coherence tomography (SSOCT) system (Silverstone, Nikon Healthcare Japan, Inc, Tokyo, Japan) can obtain OCT images of peripheral retinal degenerations and breaks.MethodsThirty-seven eyes of 31 consecutive cases (16 men, 15 women; mean age 51 years) who had peripheral retinal degenerations and underwent a UWF-SSOCT imaging were enrolled. The convenience and usefulness were investigated.ResultsIn all eyes, OCT images were capable and interpretable without any special techniques. The respective findings on OCT were retinal degeneration in 16 eyes: lattice degeneration in 8 eyes, paving stone degeneration in 4 eyes, and unclassified in 4 eyes, retinal tear in 12 eyes, and retinal hole in 9 eyes. The respective locations of the retinal degenerations or breaks were the posterior pole in 0 eyes, mid-periphery in 23 eyes, and far-periphery in 14 eyes. Fifteen eyes had a rhegmatogenous retinal detachment (RRD), one of which was preoperative and the other 14 eyes were postoperative. A buckle was placed in 8 eyes for RRD repair. Subretinal fluid was observed in 9 of 21 eyes with retinal break or retinal hole. Vitreoretinal traction was observed in 10 of 27 eyes without a history of vitrectomy. Inverted artifacts on OCT images were observed in 20 of 37 eyes, which were not related to the location or axial length, but were supposed to be due to the limited scan depth.ConclusionThe UWF-SSOCT system could capture the OCT images of peripheral retinal degenerations and breaks without any special technique.

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