Choroidal thickness in thyroid eye disease and its correlation with disease activity.

Context: This study adds to the existing body of literature on the role of optical coherence tomography (OCT) parameters in active thyroid eye disease (TED) among the Indian population.

Purpose: Comparison of choroidal vascularity index (CVI) and subfoveal choroidal thickness (SFCT) in active and inactive TED.

Settings And Design: An observational, cross-sectional analytical study conducted at a tertiary eye care hospital in North India that included patients with active and inactive TED.