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Purpose : To describe myopic nontractional foveal detachment associated with myopic central serous chorioretinopathy (CSC), pachychoroid neovascularization (PNV) that share similar characterisitcs of pachychoroid diseases.
Methods : Fifteen eyes were included. The eyes were divided into myopic CSC group (n=8) and a myopic PNV group (n=7) according to the presence of type 1 choroidal neovascularization on multimodal imaging. These multimodal findings and treatment response were described.
Results : Subfoveal choroidal thickness was 110.1±29.4 micron in myopic CSC group, 97.1±25.3 micron in myopic PNV group. In myopic CSC group, pachychoroid features such as pachyvessels, choroidal vascular hyperpermeability and punctate hyperfluorescent spots were noted in 8 eyes (100%), 8 eyes (100%), 6 eyes (75%) respectively. In similar fashion, the above features were noted in 7 eyes (100%), 5 eyes (83.3%), 5 eyes (83.3%), respectively, in myopic PNV group. Five of 8 eyes in myopic CSC and all 7 eyes received treatment including anti-vascular endothelial growth factor injection and/or photodynamic therapy. Five eyes had complete response and four eyes had incomplete response.
Conclusion : Pachychoroid phenotype can coexist with high myopia. The phachychoroid phenotype may cause myopic non-tractional serous foveal detachment, in the form of ‘myopic CSC’ or ‘myopic PNV’. Our treatment experience broadens the perspective on disease entity overlapping between pathologic myopia and pachychoroid spectrum disease.
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