Fig. 2.

Changes of subfoveal choroidal thickness at month 3 after combination PDT compared with baseline: responders vs. non-responders and non-recurrent vs. recurrent eyes. (Left) Thinning of total choroid was observed in both responders and non-responders at 3 months after combination photodynamic therapy (PDT). Reduction in thickness of choriocapillaris/Sattler’s layer and Haller’s layer at 3 months after PDT was significant in responders, but no such change was observed in non-responders. (Right) Thinning of total choroidal was observed also in both recurrent and non-recurrent eyes at 3 months after combination PDT. Reduction in Haller’s layer thickness in non-recurrent eyes was statistically significant whereas no significant reduction was observed in recurrent eyes in layer-by-layer analysis. *Statistically significant P value using paired t test