title: Prevalence of posterior vitreous detachment in the population with type II diabetes mellitus and its effect on diabetic retinopathy: Sankara Nethralaya Diabetic Retinopathy Epidemiology and Molecular Genetic Study SN-DREAMS report no. 23.
abstract: OBJECTIVE
  To report the prevalence of posterior vitreous detachment (PVD), and predisposing factors to PVD and their effect on diabetic retinopathy.
  
  
  METHODS
  Population-based study.
  
  
  METHODS
  The study included subjects with type II diabetes mellitus enrolled from a cross-sectional study. Participants underwent a biochemical examination, and a comprehensive ocular examination which included stereo fundus photography. Diabetic retinopathy was graded by use of Klein's classification and diabetic maculopathy was graded by use of the Early Treatment Diabetic Retinopathy Study (ETDRS) criteria. The status of the posterior vitreous was assessed by use of B-scan ultrasonography.
  
  
  RESULTS
  The prevalence of PVD was 63.3 %. The risk factors for PVD included age, gender, sight-threatening diabetic retinopathy, and axial length. It was observed that incomplete PVD could lead to sight-threatening diabetic retinopathy.
  
  
  CONCLUSIONS
  We report the prevalence and risk factors of PVD in subjects with diabetes mellitus. Incomplete PVD is a major risk factor for sight-threatening diabetic retinopathy.
authors.affiliation: Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, 18, College Road, Chennai, 600 006, Tamil Nadu, India.
authors.forename: Laxmi
authors.initials: L
authors.lastname: Gella
authors.forename: Rajiv
authors.initials: R
authors.lastname: Raman
authors.forename: Vaitheeswaran
authors.initials: V
authors.lastname: Kulothungan
authors.forename: Tarun
authors.initials: T
authors.lastname: Sharma
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D003930:Diabetic Retinopathy / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007194:India / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D014463:Ultrasonography; D020255:Vitreous Detachment / Q000000981:diagnostic imaging / Q000453:epidemiology*