July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
Quantification of retinal traction caused by epiretinal membrane (ERM) using en face optical coherence tomography and its influence on visual function.
Author Affiliations & Notes
  • Yuki Kanzaki
    Okayama University, Okayama, Okayama prefecture, Japan
  • Yuki Morizane
    Okayama University, Okayama, Okayama prefecture, Japan
  • Masayuki Hirano
    Okayama University, Okayama, Okayama prefecture, Japan
  • Shuhei Kimura
    Okayama University, Okayama, Okayama prefecture, Japan
  • Mio Hosokawa
    Okayama University, Okayama, Okayama prefecture, Japan
  • Yusuke Shiode
    Okayama University, Okayama, Okayama prefecture, Japan
  • Shinichiro Doi
    Okayama University, Okayama, Okayama prefecture, Japan
  • Shinji Toshima
    Okayama University, Okayama, Okayama prefecture, Japan
  • Kosuke Takahashi
    Okayama University, Okayama, Okayama prefecture, Japan
  • Atsushi Fujiwara
    Okayama University, Okayama, Okayama prefecture, Japan
  • Mika Hosogi
    Okayama University, Okayama, Okayama prefecture, Japan
  • Fumio Shiraga
    Okayama University, Okayama, Okayama prefecture, Japan
  • Ippei Takasu
    Takasu eye clinic, Okayama city, Japan
  • Footnotes
    Commercial Relationships   Yuki Kanzaki, None; Yuki Morizane, None; Masayuki Hirano, None; Shuhei Kimura, None; Mio Hosokawa, None; Yusuke Shiode, None; Shinichiro Doi, None; Shinji Toshima, None; Kosuke Takahashi, None; Atsushi Fujiwara, None; Mika Hosogi, None; Fumio Shiraga, None; Ippei Takasu, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 670. doi:
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      Yuki Kanzaki, Yuki Morizane, Masayuki Hirano, Shuhei Kimura, Mio Hosokawa, Yusuke Shiode, Shinichiro Doi, Shinji Toshima, Kosuke Takahashi, Atsushi Fujiwara, Mika Hosogi, Fumio Shiraga, Ippei Takasu; Quantification of retinal traction caused by epiretinal membrane (ERM) using en face optical coherence tomography and its influence on visual function.. Invest. Ophthalmol. Vis. Sci. 2018;59(9):670.

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

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Abstract

Purpose : Retinal traction caused by epiretinal membrane (ERM) is thought to be a cause of visual disturbance. However, it is difficult to quantitatively analyze the strength of retinal traction and to clarify its relationship with visual function. In this study, we quantified the strength of retinal traction using en face optical coherence tomography (OCT) and retrospectively studied its relationship with visual acuity and metamorphopsia.

Methods : Sixty-six eyes of 64 ERM patients (22 males and 42 females; mean age, 72.4±8.55 years old) were included in this study. Three dimensional OCT images were obtained using swept-source OCT (DRI OCT-1, Topcon), and en face OCT images were constructed using EnView software (Topcon). To quantify retinal traction, we visualized the retinal folds with en face OCT and measured the distance between the inner limiting membrane (ILM) and the deepest point of the retinal fold (maximum retinal fold depth). We also measured central retinal thickness (CRT) using B-scan OCT and quantified the degree of metamorphopsia using M-chart scores. We then investigated the correlation between maximum retinal fold depth and CRT and visual acuity or metamorphopsia (maximum M-chart score). Furthermore, we investigated the effect of residual retinal folds on visual acuity and metamorphopsia at 1 month after vitrectomy with ERM peeling using paired t-tests.

Results : Retinal folds were found in 59 eyes (89%). There was a significant correlation between maximum fold depth and maximum M-chart values and between CRT and maximum M-chart values (r2=0.378 and 0.433, respectively; both P<0.001). Neither maximum fold depth nor CRT was found to be correlated with visual acuity (P=0.587 and 0.216, respectively). ERM peeling was performed in 52 eyes, and retinal folds remained in 7 eyes (13%) at 1 month after surgery. The maximum M-chart value was significantly higher in cases with residual retinal folds than in those without retinal folds (P=0.016). There was no significant correlation between the presence or absence of residual retinal folds and visual acuity (P=0.977).

Conclusions : Retinal traction caused by ERM is significantly related to metamorphopsia but not to visual acuity. Maximum retinal fold depth and CRT may be quantitative indicators of retinal traction.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

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