Evidence map›Paper›PMID 36246945›Full record

ArticleOphthalmology science2021

Population-Based Prevalence and 5-Year Change of Soft Drusen, Pseudodrusen, and Pachydrusen in a Japanese Population.

Miki Sato-Akushichi, Reiko Kinouchi, Satoshi Ishiko, Kazuomi Hanada, Hiroki Hayashi, Daiki Mikami, Shinji Ono, Yasuo Yanagi

Open access · goldAbstract read
In one paragraph

Article in Ophthalmology science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  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

8 authors at 1 institution in 1 country.

Miki Sato-AkushichiDepartment of Ophthalmology, Asahikawa Medical University, Hokkaido, Japan.
Reiko KinouchiDepartment of Ophthalmology, Asahikawa Medical University, Hokkaido, Japan.
Satoshi IshikoDepartment of Ophthalmology, Asahikawa Medical University, Hokkaido, Japan.
Kazuomi HanadaMedicine and Engineering Combined Research Institute, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.
Hiroki HayashiMedicine and Engineering Combined Research Institute, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.
Daiki MikamiMedicine and Engineering Combined Research Institute, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.
Shinji OnoDepartment of Ophthalmology, Asahikawa Medical University, Hokkaido, Japan.
Yasuo YanagiDepartment of Ophthalmology, Asahikawa Medical University, Hokkaido, Japan.
Asahikawa Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To elucidate the prevalence of soft drusen, pseudodrusen, and pachydrusen and their 5-year changes in a Japanese population. Design: Longitudinal population-based cohort study conducted from 2013 through 2017. Participants: Residents 40 years of age or older. Methods: Nonmydriatic color fundus photographs were used to grade drusen subtypes and retinal pigment epithelium (RPE) abnormalities according to the Three Continent Age-Related Macular Degeneration Consortium. The 5-year changes of each drusen were investigated. Main Outcome Measures: The prevalence of each drusen subtype and the 5-year changes of each drusen. Results: Among 1731 participants, 1660 participants had gradable photographs that were assessed. The age-adjusted prevalence of soft drusen, pachydrusen, and pseudodrusen was 4.3% (95% confidence interval [CI], 3.2%-5.8%), 7.7% (95% CI, 6.2%-9.7%), and 2.8% (95% CI, 1.7%-4.2%), respectively. Pachydrusen accounted for 82.0% (n = 50) of the extramacular drusen (n = 61). Pigment abnormalities were seen in 28.3% and 8.3% of eyes with soft drusen and pachydrusen, respectively ( Conclusions: The prevalence of pachydrusen was higher than that of soft drusen and pseudodrusen combined. Pachydrusen may regress over time and typically is not associated with RPE atrophy as detected using color fundus photographs.

Indexed as

AMD, age-related macular degenerationCFP, color fundus photographCI, confidence intervalDrusen subtypesGA, geographic atrophyLongitudinal changesOCT, optical coherene tomographyPachydrusenPopulation-based cohort studyRPE, retinal pigment epithelium

Identifiers

PMID36246945
PMCPMC9560559
OpenAlexW3211669490

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.