[Persistence of a functional hyaloid artery in an adult. Apropos of a case].

We report a case of a persistent hyaloid artery in a 69 year old man. The exam of the right eye and the anterior segment of the left eye disclosed a mild cataract. Fundus examination of the left eye revealed a persistent hyaloid artery emerging from the optic disc, surrounded by primary vitreous on its anterior end, inserting on the nasal pre equatorial retina. Macular ectopia and sectorial chorioretinal atrophy were also present. Fluorescein angiography disclosed a permeable and tight hyaloid artery. There were no macular or optic nerve anomalies precluding visual acuity. After phakoemulsification, the patient regained a visual acuity of 0.9 on the left eye.