PLoS ONE (Jan 2013)

Prevalence and associations of incomplete posterior vitreous detachment in adult Chinese: the Beijing Eye Study.

  • Lei Shao,
  • Liang Xu,
  • Qi Sheng You,
  • Ya Xing Wang,
  • Chang Xi Chen,
  • Hua Yang,
  • Jin Qiong Zhou,
  • Jost B Jonas,
  • Wen Bin Wei

DOI
https://doi.org/10.1371/journal.pone.0058498
Journal volume & issue
Vol. 8, no. 3
p. e58498

Abstract

Read online

PurposeTo determine prevalence and associations of incomplete posterior vitreous detachment (PVD).MethodsThe population-based cross-sectional Beijing Eye Study 2011 included 3468 individuals with a mean age of 64.6±9.8 years (range: 50-93 years). A detailed ophthalmic examination was performed including spectral-domain optical coherence tomography (SD-OCT). Incomplete PVD was differentiated into type 1 (shallow PVD with circular perifoveal vitreous attachment), type 2 (PVD reaching fovea but not foveola), type 3 (shallow PVD with pinpoint vitreous attachment at the foveola), and type 4 (PVD completely detached from the macula, attached to the optic disc).ResultsAn incomplete PVD was detected in 3948 eyes (prevalence: 60.5±0.6%; 95% Confidence Interval (CI): 59.3%,61.7%) of 2198 subjects (67.1±0.8%;95%CI: 65.6%,68.7%). Type 1 PVD was seen in 3090 (78.3%) eyes, type 2 PVD in 504 (12.8%) eyes, type 3 PVD in 70 (1.8%) eyes, and type 4 PVD in 284 (7.2%) eyes. Prevalence of incomplete PVD was associated with younger age (PConclusionsIn adult Chinese in Greater Beijing, prevalence of an incomplete PVD (detected in 67.1% subjects) was associated with younger age, male gender, rural region of habitation, larger corneal diameter, better best corrected visual acuity and hyperopic refractive error.