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Pseudodrusen pattern and development of late age-related macular degeneration in the fellow eye of the unilateral case

  • Clinical Investigation
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Abstract

Purpose

To investigate whether the development of late age-related macular degeneration (AMD) in fellow eyes with pseudodrusen is associated with the pseudodrusen pattern in patients with unilateral exudative AMD.

Study design

Retrospective observational study.

Methods

A retrospective analysis was performed on 73 patients with unilateral exudative AMD showing pseudodrusen in their fellow eyes. Eyes were classified according to pseudodrusen pattern, which was determined based on maximum pseudodrusen ribbon length.

Results

During the mean follow-up period of 35.5±18.6 months, 21 (28.8%) eyes developed late AMD. Among these eyes, 15 (71%) developed exudative AMD and six (29%) developed geographic atrophy (GA). Development of late AMD in fellow eyes occurred with significantly more prevalence in patients showing a ribbon-dominant type pseudodrusen pattern in their fellow eye than dot-dominant type (P=0.0005, log-rank test). Cox-regression analysis revealed that development of late AMD in fellow eyes is associated with the presence of ribbon-dominant pseudodrusen in the fellow eyes (hazard ratio 4.15, 95% confidence interval (CI) 1.59–10.8), along with older age (hazard ratio 1.10, 95% CI 1.03–1.17), a history of smoking (hazard ratio 17.2, 95% CI 1.11–263), the presence of large soft drusen in the fellow eye. (hazard ratio 5.49, 95% CI 1.29–21.1) and retinal angiomatous proliferation (hazard ratio 5.02, 95% CI 1.90–13.2)

Conclusions

Fellow eyes with ribbon-dominant pseudodrusen in patients with unilateral exudative AMD are likely to develop late AMD.

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Authors and Affiliations

  1. Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

    Yoichi Sakurada, Atsushi Sugiyama, Wataru Kikushima, Seigo Yoneyama, Naohiko Tanabe, Mio Matsubara & Hiroyuki Iijima

Authors
  1. Yoichi Sakurada
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  2. Atsushi Sugiyama
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  3. Wataru Kikushima
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  4. Seigo Yoneyama
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  5. Naohiko Tanabe
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  6. Mio Matsubara
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  7. Hiroyuki Iijima
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Corresponding author

Correspondence to Yoichi Sakurada.

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Conflicts of interest

Y Sakurada, Lecture fees (Santen, Bayer, Novartis); A. Sugiyama, None; W. Kikushima, None; S. Yoneyama, None; N. Tanabe, None; M. Matsubara, None; H. Iijima, Speaker fees (Bayer, Santen, Novartis, Shionogi), Lecture fee (Novartis).

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Corresponding author: Yoichi Sakurada

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Sakurada, Y., Sugiyama, A., Kikushima, W. et al. Pseudodrusen pattern and development of late age-related macular degeneration in the fellow eye of the unilateral case. Jpn J Ophthalmol 63, 374–381 (2019). https://doi.org/10.1007/s10384-019-00680-9

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  • DOI: https://doi.org/10.1007/s10384-019-00680-9

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