Aims: To identify the angiographic and tomographic prognostic factors of chronic central serous chorioretinopathy (CSC) treated with half-dose photodynamic therapy (PDT).
Methods: This is a consecutive series of 61 eyes with chronic CSC treated with half-dose PDT from January 1, 2009 to October 31, 2016.
Results: The mean logMAR best-corrected visual acuity (BCVA) improved from 0.47 to 0.31 at 3 months (p < 0.001). From multivariate regression, the final BCVA was significantly associated with the baseline BCVA (p = 0.003), a diffuse hyperfluorescence pattern on indocyanine green angiography (ICGA) (p = 0.024), posttreatment shallow irregular pigment epithelium detachment (PED) (p = 0.022), and disruption of the ellipsoid zone (p = 0.007). A diffuse hyperfluorescence pattern on ICGA was associated with a 77.4 times risk of subretinal fluid persistence after treatment (p = 0.009).
Conclusion: A poor baseline BCVA, diffuse hyperfluorescence ICGA pattern, shallow irregular PED, and disruption of the ellipsoid zone indicate poor prognosis.
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