PMID: 9558845Apr 29, 1998Paper

Chorioretinal malformation in vascular loop formation on the optic disc

Nippon Ganka Gakkai zasshi
K SugiuchiS Yoneya

Abstract

We have studied the eyes of a 57 year-old man, with good visual acuity, who was found to have an unusual prepapillary vascular loop formation in both eyes. Ophthalmoscopic examination revealed that the central retinal vein ran a course beneath the retinal pigment epithelium in right eye. Fluorescein angiography showed the prepapillary vascular loops to originate from the central retinal artery in both eyes. We also noted arterial, but not arteriovenous, shunt formation in the retina of both eyes. By indocyanine green angiography we demonstrated the presence of a drainage system, the so called posterior ciliary vein, which was connected directly to the central retinal vein temporal to the optic disc in the right eye. We believe this to be a new type of chorioretinal vascular formation which is different from the chorio-vaginal vein and the optico-ciliary vein.

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