April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
The Significance of Preoperative External Limiting Membrane Status for Visual Acuity after Treatment of Diabetic Macular Edema by Pars Plana Vitrectomy
Author Affiliations & Notes
  • Shin-Ichiro Ito
    Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan
    Institute of Biomedical Research and Innovation, Kobe, Japan
  • Noriko Miyamoto
    Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan
    Institute of Biomedical Research and Innovation, Kobe, Japan
  • Kazuhiro Ishida
    Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan
    Institute of Biomedical Research and Innovation, Kobe, Japan
  • Yasuo Kurimoto
    Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan
    Institute of Biomedical Research and Innovation, Kobe, Japan
  • Footnotes
    Commercial Relationships  Shin-Ichiro Ito, None; Noriko Miyamoto, None; Kazuhiro Ishida, None; Yasuo Kurimoto, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 991. doi:
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      Shin-Ichiro Ito, Noriko Miyamoto, Kazuhiro Ishida, Yasuo Kurimoto; The Significance of Preoperative External Limiting Membrane Status for Visual Acuity after Treatment of Diabetic Macular Edema by Pars Plana Vitrectomy. Invest. Ophthalmol. Vis. Sci. 2011;52(14):991.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To evaluate the association between preoperative photoreceptor layer status and visual acuity (VA) after performing pars plana vitrectomy (PPV) in diabetic macular edema (DME).

Methods: : We retrospectively reviewed the spectral-domain optical coherence tomography (SD-OCT) images of 28 eyes from 22 cases with DME who were treated with PPV and evaluated the correlation of preoperative factors such as the status of external limiting membrane (ELM) and inner segment/outer segment (IS/OS), foveal macular thickness, and the presence or absence of serous retinal detachment, hard exudate and vitreous adhesion with the VA at one and three months after PPV. The status of ELM and IS/OS was classified into 3 categories (absent, disrupted, and complete).

Results: : There was a strong correlation between preoperative ELM status and the VA at one (r=0.515, P=0.005) and three months (r=0.553, P=0.002) after PPV, and also between preoperative IS/OS status and the VA at one (r=0.425, P=0.024) and three months (r=0.534, P=0.03) after PPV. The ELM status had stronger correlation with the VA than the IS/OS status. However, there was no correlation between the other factors and the postoperative VA.

Conclusions: : These results indicated that preoperative ELM status may be more useful than preoperative IS/OS status to predict VA after PPV in DME.

Keywords: diabetic retinopathy • edema • vitreoretinal surgery 
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