title: Analysis of the time and location of the silicone oil emulsification by spectral-domain optical coherence tomography after silicone oil tamponade.
abstract: OBJECTIVE
  To estimate localization and the period up to the appearance of small hyperreflective round-shaped droplets using spectral-domain optical coherence tomography (SD-OCT) after pars plana vitrectomy with silicone oil tamponade.
  
  
  METHODS
  A retrospective observational study included 24 patients who had undergone pars plana vitrectomy with silicone oil tamponade for proliferative vitreoretinopathy (PVR) retinal detachment. SD-OCT analysis was performed 1, 3, and 6 months after surgery. We characterized the emulsified silicone oil in the SD-OCT as the small hyperreflective round-shaped droplets.
  
  
  RESULTS
  In SD-OCT examination, none of the patients had hyperreflective round-shaped droplets visible one month after vitrectomy with silicone oil tamponade. The hyperreflective droplets were found three months after surgery-in one patient above the optic nerve and in five patients intraretinally (in the cystoid spaces). Six months after vitrectomy, the hyperreflective round-shaped droplets were still present in the aforementioned patients' eyes and additionally in 3 eyes above the optic disc.
  
  
  CONCLUSIONS
  Hyperreflective round-shaped droplets were found in a SD-OCT examination 3 months after silicone oil tamponade. The authors suggest that they are most likely the emulsified silicone oil droplets. The authors hypothesize that emulsification and migration of silicone oil begin within 3 months after surgery.
authors: Klinika Okulistyczna Boni Frates Lodziensis, Ulica Kosynierów Gdyńskich 17, Al. Hippiczna 36 m.2, 94-049 Łódź, Poland.
authors: Dominik
authors: 0000-0003-1528-2103
authors: D
authors: Odrobina
authors: Klinika Okulistyczna Boni Frates Lodziensis, Ulica Kosynierów Gdyńskich 17, Al. Hippiczna 36 m.2, 94-049 Łódź, Poland.
authors: Iwona
authors: I
authors: Laudańska-Olszewska
mesh_terms: D000368:Aged; D004655:Emulsions; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012163:Retinal Detachment / Q000473:pathology / Q000601:surgery; D012827:Silicone Oils / Q000008:administration & dosage*; D013997:Time Factors; D041623:Tomography, Optical Coherence; D014821:Vitrectomy; D018630:Vitreoretinopathy, Proliferative / Q000473:pathology / Q000601:surgery
chemical_list: D004655:Emulsions; D012827:Silicone Oils