June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Frequency and risk factors of retinal hemorrhages in adult Chinese in rural and urban China
Author Affiliations & Notes
  • Liang Xu
    Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Beijing, China
  • Ya Xing Wang
    Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Beijing, China
  • Jin Qiong Zhou
    Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Beijing, China
  • Jost Jonas
    Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Beijing, China
    Ophthalmology, Medical Faculty Mannheim, Manheim, Germany
  • Footnotes
    Commercial Relationships Liang Xu, None; Ya Xing Wang, None; Jin Qiong Zhou, None; Jost Jonas, Allergan (C), MSD (C), Alimera (C), CellMed AG (P)
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 1572. doi:
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      Liang Xu, Ya Xing Wang, Jin Qiong Zhou, Jost Jonas; Frequency and risk factors of retinal hemorrhages in adult Chinese in rural and urban China. Invest. Ophthalmol. Vis. Sci. 2013;54(15):1572.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: To describe the prevalence and associations of retinal hemorrhages (RH) in adult Chinese.

Methods: The Beijing Eye Study 2011 was a population-based study held in urban and rural Beijing. A total of 3468 participants were enrolled with mean age of 64.6±6.8 years. Detailed eye and systematic examinations were applied. Two photos per eye were taken using 45° fundus camera, centered in either macula or the optic disc. Any retinal hemorrhages were recorded.

Results: 3437 subjects (99.1%) or 6836 eyes had gradable fundus photographs. RH were observed in 435 participants (12.7%±1.0%) or 518 eyes (7.6± 2.2%). RH were located in optic disc (9.5%), peripapillary area (37.5%), macula (24.3%), periphery areas (6.4%), or diffused area (22.4%). The causes for RH were attributed to diabetic retinopathy (35.3%), retinal vein occlusion (12.2%), Posterior Vitreous Detachment (4.4%), glaucoma (2,5%), age-related macular degeneration (1.5%), and other diseases (0.4%). However causes fro 43.6% of the RH could not be clearly found. The presence of RH with unclear reasons was associated with systolic blood pressure (P<0.001), refractive error (P<0.001), and body mess index (P=0.003).

Conclusions: RH was present in 12.7% adult Chinese population, half of which were related to certain ophthalmological disorders. The RH with unknown causes might be a hint of systematic diseases.

Keywords: 464 clinical (human) or epidemiologic studies: risk factor assessment • 688 retina  
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