May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Prognostic Factors for Visual Outcome After Idiopathic Epiretinal Membrane Surgery
Author Affiliations & Notes
  • J. Kim
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • E. Chung
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • J. Bae
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • S. Lee
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • S. Lee
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • O. Kwon
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • H. Koh
    Ophthalmology, Yonsei University, Seoul, Republic of Korea
  • Footnotes
    Commercial Relationships  J. Kim, None; E. Chung, None; J. Bae, None; S. Lee, None; S. Lee, None; O. Kwon, None; H. Koh, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 4681. doi:https://doi.org/
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      J. Kim, E. Chung, J. Bae, S. Lee, S. Lee, O. Kwon, H. Koh; Prognostic Factors for Visual Outcome After Idiopathic Epiretinal Membrane Surgery. Invest. Ophthalmol. Vis. Sci. 2008;49(13):4681. doi: https://doi.org/.

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

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Abstract

Purpose: : To evaluate the role of a preoperative optical coherence tomography (OCT) and multifocal electroretinogram and their predictive values for the visual outcome after idiopathic epiretinal membrane surgery.

Methods: : Clinical records of 65 patients (65 eyes) with idiopathic epiretinal membrane who underwent vitrectomy between January 2005 and May 2007 were retrospectively reviewed. Best corrected visual acuity at baseline and 1, 3, 6 months after surgery were assessed. Multifocal ERG responses (P1 amplitude and implicit time) of central 5°macula and foveal thickness using OCT were evaluated before the surgery. Correlations between pre/postoperative BCVA and foveal thickness, mfERG responses were analyzed.

Results: : BCVA improved from 0.436 ± 0.275 to 0.707 ± 0.288 at 6 months after surgery (P < 0.001, paired t-test). 48 eyes of 68 (74%) achieved improved BCVA more than 2 Snellen lines from the preoperative to the final post operative examination. Preoperative foveal thickness was significantly correlated with the postoperative BCVA. (r= -0.452, p<0.001, Pearson correlation) P1 implicit time was associated with the central foveal thickness and preoperative BCVA, and marginally associated with the postoperative BCVA. (r=-0.263, p=0.059, Pearson correlation) P1 amplitude was not correlated with both functional and anatomical outcomes.

Conclusions: : Preoperative foveal thickness using OCT may have prognostic value for postoperative visual outcome in eyes with idiopathic epiretinal membrane, while mfERG has limited prognostic value for visual outcome.

Keywords: macula/fovea • vitreoretinal surgery • visual acuity 
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