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Journal of Ophthalmology
Volume 2017 (2017), Article ID 6913980, 10 pages
https://doi.org/10.1155/2017/6913980
Research Article

Detection of Silent Type I Choroidal Neovascular Membrane in Chronic Central Serous Chorioretinopathy Using En Face Swept-Source Optical Coherence Tomography Angiography

1Ophthalmology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
2MEDIC Eye Center, Tanta, Egypt
3Retina Department, Research Institute of Ophthalmology, Giza, Egypt
4Ophthalmology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt

Correspondence should be addressed to Magdy Moussa; moc.liamg@06assuomydgam

Received 30 August 2017; Accepted 30 October 2017; Published 4 December 2017

Academic Editor: Talisa E. de Carlo

Copyright © 2017 Magdy Moussa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. To evaluate the efficacy of SS-OCTA in the detection of silent CNV secondary to chronic CSCR compared to that of FFA and SS-OCT. Patients and Methods. A retrospective observational case series reviewing the clinical data, FFA, SS-OCT, and SS-OCTA images of patients with chronic CSCR, and comparing the findings. SS-OCTA detects the CNV complex and delineates it from the surrounding pathological features of chronic CSCR by utilizing the blood flow detection algorithm, OCTARA, and the ultrahigh-definition B-scan images of the retinal microstructure generated by swept-source technology. The bivariate correlation procedure was used for the calculation of the correlation matrix of the variables tested. Results. The study included 60 eyes of 40 patients. Mean age was 47.6 years. Mean disease duration was 14.5 months. SS-OCTA detected type 1 CNV in 5 eyes (8.3%). In all 5 eyes, FFA and SS-OCT were inconclusive for CNV. The presence of foveal thinning, opaque material beneath irregular flat PED, and increased choroidal thickness in chronic CSCR constitutes a high-risk profile for progression to CNV development. Conclusion. Silent type 1 CNV is an established complication of chronic CSCR. SS-OCTA is indispensable in excluding CNV especially in high-risk patients and whenever FFA and SS-OCT are inconclusive.