Ultrabiomicroscopic Findings in Acute Uveitic, Convalescent and Chronic Recurrent Stage of Vogt-Koyanagi-Harada Syndrome.

Purpose: To describe the ultrabiomicroscopy (UBM) characteristics in patients with uveitic, convalescent, and recurrent Vogt-Koyanagi-Harada (VKH) disease.

Methods: In this prospective, non-interventional, and observational study, all UBM variables, namely pars plicata and pars plana thickness, ciliochoroidal detachment, angle chamber, anterior chamber depth, ID2, and presence of ciliary processes, were compared between acute uveitic, convalescent, and chronic-recurrent phases.

Results: Ninety-one eyes were analyzed. Ciliochoroidal detachment (20%) and unclear ciliary processes (15%) are the most characteristic findings of the uveitic phase. At 1 and 3 months, ciliochoroidal detachment is no longer observed. In recurrent phase, pars plicata and pars plana thickness increases again and then decreases after the first month of treatment. Convalescent-phase does not show significant differences in UBM variables after a 6-month follow up.

Conclusions: UBM may have a role in evaluating response to treatment in uveitic and recurrent phases and in the early detection of recurrences.