title: Optical coherence tomography assessment of the vitreoretinal relationship in diabetic macular edema.
abstract: OBJECTIVE
  To study the vitreoretinal relationship in diabetic patients with and without diabetic macular edema (DME) using optical coherence tomography.
  
  
  METHODS
  Retrospective case-control study.
  
  
  METHODS
  setting: Institutional practice. patients: Thirty-five consecutive diabetic patients (49 eyes) with DME and 35 sex- and age-matched diabetic control patients without DME (49 eyes). observation procedure: All patients had Early Treatment Diabetic Retinopathy Study visual acuity measurement and biomicroscopic examination of the vitreoretinal interface. OCT was performed to obtain cross-sectional images of the vitreoretinal interface of the macular region. Posterior vitreous detachment (PVD) was staged from 0 to 3 as follows: stage 0: absence of PVD; stage 1: perifoveolar PVD with foveolar attachment; stage 2: incomplete PVD with residual attachment to the optic nerve; and stage 3: complete PVD. Retinal thickness was measured using OCT mapping software in all cases. main outcome measures: Prevalence of the different PVD stages in both groups of eyes.
  
  
  RESULTS
  The mean age of the patients was 60 years in both groups. Of the eyes with macular edema, 19 (38.8%) were stage 0, 26 (53.0%) stage 1, 1 (2.0%) was stage 2, and 3 (6.2%) were stage 3. In eyes without DME, the corresponding figures were, respectively, 34 (69.4%), 11 (22.4%), 1 (2.0%), and 3 (6.2%). The prevalence of perifoveolar PVD with foveolar attachment was significantly higher in the group of eyes with DME (P =.006).
  
  
  CONCLUSIONS
  These results show the high prevalence of perifoveolar PVD with foveolar attachment in diabetic patients with macular edema. Even though PVD is not the main factor involved in the pathogenesis of DME, perifoveolar PVD may have a role in the development of this complication.
authors.affiliation: Department of Ophthalmology, Hôpital Lariboisière, Université Paris 7, and Assistance Publique-Hôpitaux de Paris, 2 rue Ambroise Paré, 75010 Paris, France.
authors.forename: David
authors.initials: D
authors.lastname: Gaucher
authors.forename: Ramin
authors.initials: R
authors.lastname: Tadayoni
authors.forename: Ali
authors.initials: A
authors.lastname: Erginay
authors.forename: Belkacem
authors.initials: B
authors.lastname: Haouchine
authors.forename: Alain
authors.initials: A
authors.lastname: Gaudric
authors.forename: Pascale
authors.initials: P
authors.lastname: Massin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D003930:Diabetic Retinopathy / Q000175:diagnosis* / Q000209:etiology; D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D006801:Humans; D008269:Macular Edema / Q000175:diagnosis* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012160:Retina / Q000473:pathology*; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence; D014792:Visual Acuity; D014822:Vitreous Body / Q000473:pathology*; D020255:Vitreous Detachment / Q000150:complications / Q000175:diagnosis*