Choroidal and Retinal Anatomical Responses Following Systemic Corticosteroid Therapy in Vogt-Koyanagi-Harada Disease Using Swept-Source Optical Coherence Tomography.

ABSTRACT

PURPOSE: To assess structural changes in retina and choroid after systemic corticosteroid therapy in Vogt-Koyanagi-Harada (VKH) disease using swept-source optical coherence tomography (SS-OCT). METHODS: SS-OCT was conducted before treatment and during first-month follow-up in 16 eyes treated with systemic corticosteroids for active VKH. Retina was divided into five zones depending on pretreatment choroidal thickness (CT) of <100, >100 to <200, >200 to <300, >300 to <400 and >400µm, and changes in retinal thickness and CT after treatment in these zones were compared with baseline. RESULTS: Mean CT significantly improved from 83.1±8.75 to 156.4±62.73µm(p = 0.008) in the zone with pre-CT <100µm and significantly decreased from 336.1 ± 17.28 to 266.28 ± 81.39µm(p = 0.008) in the zone with pre-CT > 300µm. CONCLUSIONS: We have shown choroidal remodeling in VKH. SS-OCT can serve as an important noninvasive tool in assessment of treatment response in patients with VKH disease.