Evidence map›Paper›PMID 34314466›Full record

ArticlePloS one2021

Drusen and pigment abnormality predict the development of neovascular age-related macular degeneration in Japanese patients.

Shoji Notomi, Satomi Shiose, Keijiro Ishikawa, Yosuke Fukuda, Kumiko Kano, Kenichiro Mori, Iori Wada, Yoshihiro Kaizu, Hidetaka Matsumoto, Masato Akiyama and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Geographic atrophy in Asia.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Shoji NotomiDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.ORCID 0000-0002-7935-4244
Satomi ShioseDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Keijiro IshikawaDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Yosuke FukudaDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Kumiko KanoDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Kenichiro MoriDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Iori WadaDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Yoshihiro KaizuDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Hidetaka MatsumotoDepartment of Ophthalmology, Gunma University Graduate School of Medicine, Maebashi, Japan.ORCID 0000-0003-2311-0280
Masato AkiyamaDepartment of Ocular Pathology and Imaging Science, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Koh-Hei SonodaDepartment of Ophthalmology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
Kyushu University · JPGunma University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Drusen are known to be the important hallmark to predict the development of age-related macular degeneration (AMD). The prevalence of drusen is lower in Asians compared with Caucasians so that the role of signs constituting early AMD is not well established in Asian populations as in Western countries. In this study, we retrospectively investigated clinical characteristics and 5-year incidence of neovascular AMD (nAMD) in the fellow eye of unilateral nAMD patients. Of 296 consecutive unilateral nAMD patients who had been followed up more than 5 years, 170 typical AMD, 119 polypoidal choroidal vasculopathy, and 7 retinal angiomatous proliferation were included. To examine factors associated with nAMD occurrence in the fellow eye, drusen and pigmentary abnormality in the fellow eye were classified into 4 categories; Category 1: no or small drusen < 63 μm (37.2%), Category 2: 63-125 μm medium drusen or pigmentary abnormality (22.2%), Category 3: large drusen > 125 μm (25.0%), Category P: pachydrusen (15.5%). The mean sub-foveal choroidal thickness (SFCT) was Category 1: 276 μm, Category 2: 308 μm, Category 3: 246 μm, and Category P: 302 μm, respectively. Of note, SFCT in Category 2 and Category P was significantly larger than those of Category 3. Finally, the 5-year incidence of nAMD in the fellow eye was 32/296 (10.8%); Category 1: 0/110 (0%), Category 2: 12/66 (18.2%), Category 3: 20/74 (27.0%), and Category P: 0/46 (0%). Thus, signs of intermediate AMD (large drusen) as well as those of early AMD, especially the pigmentary abnormality, may contribute to development of bilateral nAMD in Japanese patients.

Indexed as

AgedChoroidFemaleHumansIncidenceJapanMacular DegenerationMaleMiddle AgedRetinaRetinal DrusenRetrospective StudiesTomography, Optical Coherence

Identifiers

PMID34314466
PMCPMC8315508
OpenAlexW3185532377

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.