Helicobacter pylori and idiopathic central serous chorioretinopathy.

Idiopathic central serous chorioretinopathy (ICSC) is a disease that typically affects middleaged adults and involves the sensory retina, the retinal pigment epithelium (RPE) and the choroid. Patients usually have mild visual loss. ICSC generally resolves without therapy, although the disease can become chronic with ensuing RPE decompensation. Some patients, particularly older adults, can also develop choroidal subretinal neovascularisations (CNV), which may lead to a severe loss in visual acuity. Although the aetiopathogenesis of the disease is still incompletely understood, a correlation with psychophysical stress supports the idea that the disease may be "adrenergically conditioned", leading to the development of one or several defects in the RPE, with subsequent focal leakage of serous fluid and its retention in the subretinal space. An association between ICSC and the Helicobacter pylori (HP) infection has also been recently documented, suggesting that this organism may possibly be involved in the development of some cases of ICSC. Pathogenetic mechanisms that may explain the contribution of HP in the development of ICSC are postulated.