title: Characteristics of the retinal surface after internal limiting membrane peeling in highly myopic eyes.
abstract: OBJECTIVE
  To document the characteristics of the retinal surface using en face optical coherence tomography (OCT) after internal limiting membrane (ILM) peeling during pars plana vitrectomy (PPV) for myopic macular diseases.
  
  
  METHODS
  Retrospective, interventional case series.
  
  
  METHODS
  We examined 20 eyes of 20 patients with high myopia who underwent PPV with ILM peeling. The patients were followed for at least 6 months postoperatively, and OCT images were examined using spectral-domain OCT. To assess the incidence and patterns of the retinal dimple sign, we reconstructed en face OCT images and quantified the number of dimples during the follow-up period.
  
  
  RESULTS
  We identified 3 retinal dimple signs (ie, foveal-centered pattern, linear pattern, and paravascular pattern). The total numbers of retinal dimples at baseline and 1, 3, and 6 months postoperatively were 0, 31.8 ± 23.7, 47.95 ± 29.5, and 54.6 ± 30.7, respectively. There were significantly more dimples temporal to the macula compared to the other 3 quadrants at 1, 3, and 6 months postoperatively (P = .025, P = .0021, and P = .0060, respectively). However, the retinal sensitivities assessed by microperimetry were not correlated with the number of dimples.
  
  
  CONCLUSIONS
  Development of the retinal dimple sign after PPV and ILM peeling in highly myopic eyes was seen in all cases on en face OCT images. Although retinal dimples are benign, care should be taken after ILM peeling in highly myopic eyes.
authors.affiliation: Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
authors.forename: Susumu
authors.initials: S
authors.lastname: Sakimoto
authors.affiliation: Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan. Electronic address: ikuno@ophthal.med.osaka-u.ac.jp.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Ikuno
authors.affiliation: Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
authors.forename: Satoko
authors.initials: S
authors.lastname: Fujimoto
authors.affiliation: Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Sakaguchi
authors.affiliation: Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
authors.forename: Kohji
authors.initials: K
authors.lastname: Nishida
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001485:Basement Membrane / Q000473:pathology / Q000601:surgery; D002387:Cataract Extraction; D004396:Coloring Agents; D019773:Epiretinal Membrane / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D047728:Myopia, Degenerative / Q000150:complications*; D012160:Retina / Q000473:pathology*; D012163:Retinal Detachment / Q000601:surgery; D012167:Retinal Perforations / Q000601:surgery; D041441:Retinoschisis / Q000601:surgery; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy
chemical_list: D004396:Coloring Agents