Purpose: To present clinical manifestations of eyes with peculiar looped/coiled peripapillary retinal vessels. Methods: Seven patients with looped/coiled retinal vessels on or near the optic disc were enrolled. All patients went through detailed ophthalmologic examinations and fluorescein angiography (FAG). Results: There were two men and five women. Patients’ age ranged from 15 to 71 years (mean: 39 years). The followup period ranged from 3 to 74 months (average: 27 months). One patient had bilateral involvement. Five of the seven patients noticed sudden onset of floaters in one eye. The colour fundus photography revealed looped/coiled retinal vessels on or near the optic disc, and most of the vessels were arteries. Accompanied retinal, preretinal, or vitreous haemorrhage was noted in all five patients who had sudden onset of floaters. Fluorescein angiography showed no leakage from the looped/ coiled retinal vessels. No specific underlying diseases were noted in any patients. Follow-up examination revealed reabsorption of haemorrhage, and no change of the abnormal vessel patterns in any eyes. Conclusions: The peculiar fundus lesion of looped/coiled peripapillary retinal vessels is likely a benign congenital retinal vascular anomaly that does not progress. Floaters secondary to preretinal or vitreous haemorrhage is the most frequent complaint. The prognosis is excellent.
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