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Central serous chorioretinopathy: a pathogenetic model

Authors Caccavale A, Romanazzi F, Imparato M, Negri A, Morano A, Ferentini F

Published 20 February 2011 Volume 2011:5 Pages 239—243


Review by Single anonymous peer review

Peer reviewer comments 2

Antonio Caccavale1, Filippo Romanazzi1, Manuela Imparato1, Angelo Negri2, Anna Morano3, Fabio Ferentini2
1Department of Ophthalmology, Neuropthalmology and Ocular Immunology Service, 2Department of Ophthalmology, Hospital “C. Cantù”, Abbiategrasso, Milan, Italy; 3University Eye Clinic, Foundation IRCCS San Matteo Hospital, Pavia, Italy

Abstract: Despite numerous studies describing predominantly its demography and clinical course, many aspects of central serous chorioretinopathy (CSCR) remain unclear. Perhaps the major impediment to finding an effective therapy is the difficulty of performing studies with large enough cohorts, which has meant that clinicians have focused more on therapy than on a deeper understanding of the pathogenesis of the disease. Hypotheses on the pathogenesis of CSCR have ranged from a basic alteration in the choroid to an involvement of the retinal pigment epithelium (RPE). Starting from evidence that affected subjects often present a personality prone to stress with altered pituitary–hypothalamic axis response (HPA) and that they have higher levels of serum and urinary cortisol and catecholamines than healthy subjects, we hypothesize a cascade of events that may lead to CSCR through hypercoagulability and augmented platelet aggregation. In particular we investigated the role of tissue plasminogen activator, increasing plasminogen activator inhibitor 1 (PAI-1), and plasmin-α2- plasmin inhibitor complexes. We reviewed the different therapeutic approaches, including adrenergic antagonists, carbonic anhydrase inhibitors, mifepristone, ketoconazole, laser photocoagulation, intravitreal injection of bevacizumab, and photodynamic therapy with verteporfin (PDT) and our model of pathogenesis seems to be in agreement with the clinical effects obtained from these treatments. In accord with our thesis, we began to treat a group of patients affected by CSCR with low-dose aspirin (75–100 mg), because of its effectiveness in other vascular diseases and its low ocular and general toxicity with prolonged use. The formulation of a causative model of CSCR enables us to understand how the therapeutic approach cannot be based on a generalized therapy but should be individualized for each patient, and that sometimes a combined strategy of treatment is required. Moreover a complete knowledge of the disease will help to identify patients prone to the most persistent forms of CSCR, and thus help to find a treatment.

Keywords: CSCR, aspirin, PAI-1, glucocorticoid, macula, pathogenesis

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