SEROUS DETACHMENT OF THE MACULA IN CONGEN ITAL PIT OF THE OPTIC DISC AND INDOCYANINE GREEN VIDEO-ANGIOGRAPHY

Purpose Etiopathogeny of serous retinal detachment (SRD) in optic pits remains a mystery. Several hypotheses have been proposed that lead to different treatments based on the possible mechanisms which explain t he occurrence of SRD. The literature data about fluorescein angiograph y mainly concern the angiographic aspects of the optic pit itself, and seldom the SRD. We have examined these fluorescein angiographic aspec ts of the SRD. Indocyanine cardiogreen video-angiography gives new inf ormation which question the last etiologic hypothesis. Methods Nine pa tients underwent a fluorescein angiography when the SRD was discovered . Indocyanine cardiogreen was performed in four patients. Results In 8 cases there was hyperfluorescence on the optic pit. In 7 cases in the peripapillar space of the SRD. In one of these cases, there was a lea kage on the temporal margin of the optic nerve. In 8 cases in the SRD: we noticed a late minimal hyperfluorescence in the SRD but it already existed in the early angiogram. The SRD became hyperfluorescent in ar terio-veinous retinal phase. In later phases we noticed a well-demarca ted area of hyperfluorescence. Conclusion These investigations have re vealed a permeation problem on the blood-outer retinal barrier of the peripapillar space and above all from the edge of optic pit. This can have a prognosis value for SRD. The hyperfluorescene in SRD remains an enigma and does not allow, as we thought before to confirm one of the etiopathogenic hypotheses. A better acknowledge of indocyane cardiogr een angiographic semiology will allow us to explain these aspects in t he future.