1. Retinal and choroidal vasoreactivity in central serous chorioretinopathy
- Author
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Susana Penas, Teresa Araújo, Ana Maria Mendonça, Simão Faria, Jorge Silva, Aurélio Campilho, Maria Lurdes Martins, Vânia Sousa, Amândio Rocha-Sousa, Ângela Carneiro, and Fernando Falcão-Reis
- Subjects
Cellular and Molecular Neuroscience ,Ophthalmology ,Central Serous Chorioretinopathy ,Choroid ,Visual Acuity ,Humans ,Pilot Projects ,Fluorescein Angiography ,Tomography, Optical Coherence ,Sensory Systems ,Retrospective Studies - Abstract
This study aims to investigate retinal and choroidal vascular reactivity to carbogen in central serous chorioretinopathy (CSC) patients.An experimental pilot study including 68 eyes from 20 CSC patients and 14 age and sex-matched controls was performed. The participants inhaled carbogen (5% CONo significant differences were detected in baseline hemodynamic parameters between both groups. A significant positive correlation was found between the participants' age and arterial diameter variation (p 0.001, r = 0.447), meaning that younger participants presented a more vasoconstrictive response (negative variation) than older ones. No significant differences were detected in the vasoreactive response between CSC and controls for both arterial and venous vessels (p = 0.63 and p = 0.85, respectively). Although the vascular reactivity was not related to the activity of CSC, it was related to the time of disease, for both the arterial (p = 0.02, r = 0.381) and venous (p = 0.001, r = 0.530) beds. SFCT and MCCT were highly correlated (r = 0.830, p 0.001). Both SFCT and MCCT significantly increased in CSC patients (p 0.001 and p 0.001) but not in controls (p = 0.059 and 0.247). A significant negative correlation between CSC patients' age and MCCT variation (r = - 0.340, p = 0.049) was detected. In CSC patients, the choroidal thickness variation was not related to the activity state, time of disease, or previous photodynamic treatment.Vasoreactivity to carbogen was similar in the retinal vessels but significantly higher in the choroidal vessels of CSC patients when compared to controls, strengthening the hypothesis of a choroidal regulation dysfunction in this pathology.
- Published
- 2022