title: Why Poor Vision Despite an Attached Retina following Primary Vitrectomy in Egyptian Patients?
abstract: OBJECTIVE
  To correlate findings on spectral domain optical coherence tomography (SD-OCT) and best-corrected visual acuity (BCVA) following primary vitrectomy for rhegmatogenous retinal detachment (RRD).
  
  
  METHODS
  In this prospective, interventional, non-randomized case series, 71 eyes with RRD of intermediate severity underwent primary vitrectomy followed by SD-OCT one month later. Main outcome measures were inner segment/outer segment (IS/OS) junction line and external limiting membrane (ELM) disruption.
  
  
  RESULTS
  All patients achieved reattachment with mean BCVA of 0.77 ± 0.36 logMAR. There was statistically significant correlation between each length of IS/OS and ELM defect on the one hand, and BCVA on the other hand.
  
  
  CONCLUSIONS
  The extent of IS/OS and ELM disruption explains the poor visual outcome in successful RD surgery with an otherwise normal foveal contour.
authors: a Department of Ophthalmology, Kasr El Ainy Hospital , Cairo University , Cairo , Egypt.
authors: Abdussalam Mohsen
authors: AM
authors: Abdussalam Abdullatif
authors: a Department of Ophthalmology, Kasr El Ainy Hospital , Cairo University , Cairo , Egypt.
authors: Mohamad Amr Salah Eddin
authors: MASE
authors: Abdelhakim
authors: a Department of Ophthalmology, Kasr El Ainy Hospital , Cairo University , Cairo , Egypt.
authors: Hassan Aly
authors: HA
authors: Mortada
authors: a Department of Ophthalmology, Kasr El Ainy Hospital , Cairo University , Cairo , Egypt.
authors: Heba Magdy
authors: HM
authors: El-Saied
mesh_terms: D000328:Adult; D000368:Aged; D004534:Egypt / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D005584:Fovea Centralis / Q000473:pathology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011446:Prospective Studies; D012163:Retinal Detachment / Q000175:diagnosis / Q000601:surgery*; D041623:Tomography, Optical Coherence / Q000379:methods*; D015354:Vision, Low / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D014792:Visual Acuity; D014821:Vitrectomy / Q000009:adverse effects*
keywords: Best-corrected visual acuity; external limiting membrane; inner segment/outer segment junction; primary vitrectomy; spectral domain optical coherence tomography