Journal
EYE
Volume 35, Issue 10, Pages 2871-2878Publisher
SPRINGERNATURE
DOI: 10.1038/s41433-020-01345-5
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Funding
- National Natural Science Foundation of China [81700861, 81700862, 81770944, 81800846]
- Shanghai Hospital Development Center [SHDC12016116]
- Science and Technology Commission of Shanghai Municipality [16411953700]
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SS-OCTA was used to evaluate the features of treatment-naive FIPED-associated CNV in chronic CSC, showing quiescent characteristics. Half-dose PDT had favorable effects on chronic CSC complicated with FIPED-associated CNV, leading to improved visual acuity and decreased subfoveal choroidal thickness. Juxtaposed to baseline levels, the vessel density of CNV remained stable at 1-, 3-, and 6-month follow-ups, while the area of CNV significantly increased at the 6-month follow-up.
Background To qualitatively and quantitatively evaluate the features of treatment-naive flat irregular pigment epithelial detachment (FIPED)-associated choroidal neovascularization (CNV) in chronic central serous chorioretinopathy (CSC) using swept-source (SS) optical coherence tomography angiography (OCTA) before and after half-dose photodynamic therapy (PDT). Methods Retrospective case series. The multimodal imaging data of the eyes with FIPED-associated CNV in chronic CSC were reviewed. The features of FIPED-associated CNVs were evaluated by SS-OCTA. Results Records of twenty-one patients (21 eyes) were reviewed. The mean age was 56.62 +/- 6.87 years. After half-dose PDT, all patients have improved best spectacle-corrected visual acuity from 0.49 at baseline to 0.25 at 6-month visit, and subfoveal choroidal thickness decreased with subretinal fluids absorbed. By OCTA, the features of CNV at baseline included long filamentous linear vessels (21/21), branching into other large mature vessels with rare anastomoses (21/21); and/or a 'dead tree' appearance at the vessel's termini (20/21); and no perilesional hypointense halo (21/21). Compared to those at baseline, the mean vessel density of CNV showed no significant change at 1-,3-,6-month follow-up, while the mean area of CNV was significantly larger at the 6-month follow-up (p = 0.013). Conclusions OCT angiography allows to qualitatively and quantitatively evaluate CNV in chronic CSC. The features of FIPED-associated CNV on OCTA illustrated its quiescent characteristic and further guided therapy. Half-dose PDT showed favorable effects on chronic CSC complicated with FIPED-associated CNV.
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