First Author: V.Lages PORTUGAL
Co Author(s): V. Lages M. Macedo M. Furtado M. Lume
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To evaluate changes in subfoveal choroidal thickness (SCT) in central serous chorioretinopathy (CSC) after photodynamic therapy (PDT).
Ophthalmology department of a tertiary referral centre in Oporto, Portugal – Centro Hospitalar Universitário do Porto.
Retrospective study of 22 eyes of 20 patients who underwent PDT for chronic CSC. Subfoveal choroidal thickness was determined before PDT and at 3 and 12 months after PDT with spectral domain optical coherence tomography (Heidelberg Spectralis, Heidelberg Engineering). Eyes were also divided in two groups according to whether they received half or full dose PDT.
Reliable measurements of choroidal thickness were obtained in 72% of eyes examined. The SRDs resolved in 82% of eyes at 3 months after the PDT. Mean SCT decreased from 299µm before treatment to 257µm at 3 months after PDT (p<0,001). There was no significantly difference between SCT measured at 3 and 12 months after PDT (p=0,13). The reduction of SCT at 3 and 12 months after PDT was not statistically different between eyes that received half or full dose PDT (p=0,34).
After PDT a reduction in subfoveal choroidal thickness was observed which remained stable throughout follow-up. There were no significant differences among eyes treated either with half dose or full dose PDT.