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Frequency of retinal macroaneurysms in adult Chinese: the Beijing Eye Study
  1. Liang Xu1,
  2. Yaxing Wang1,
  3. Jost B Jonas2
  1. 1Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Science, Beijing, China
  2. 2Department of Ophthalmology, Faculty of Clinical Medicine Mannheim, University of Heidelberg, Mannheim, Germany
  1. Correspondence to: Professor J B Jonas Beijing Institute of Ophthalmology, 17 Hougou Street, Chong Wen Men, 100005 Beijing, China; jost.jonas{at}

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A retinal arterial macroaneurysm is an acquired retinal vascular abnormality, typically a solitary, round or fusiform aneurysm arising in one of the four major branch retinal arteries in the paramacular area. According to hospital-based investigations, most patients in whom this pathological condition develops are in their sixth or seventh decade of life and have a history of systemic hypertension, ophthalmoscopic evidence of retinal arteriolar sclerosis or both. Visual loss is caused by exudation or bleeding from the aneurysm. Massive retinal bleeding from a ruptured aneurysm can be confined to the …

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  • Competing interests: None.