Evidence map›Paper›PMID 33576860›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2021

Prevalence of age-related macular degeneration among optometric telemedicine users in Spain: a retrospective nationwide population-based study.

Miguel A Zapata, Anniken Burés, Roberto Gallego-Pinazo, Estanislao Gutiérrez-Sánchez, Andrea Oléñik, Salvador Pastor, Jorge Ruiz-Medrano, Cecilia Salinas, Susana Otero-Romero, Maximino Abraldes and 1 more

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

6 citing papers in PubMed, 13 citations in OpenAlex.

  1. Trial
  2. Prevalence of myopia and myopia trends among optometric telemedicine users in Spain: a retrospective nationwide observational study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
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 7 institutions in 1 country.

Miguel A ZapataOptretina, Barcelona, Spain. zapatavictori@hotmail.com.ORCID http://orcid.org/0000-0002-0096-4569
Anniken BurésOptretina Image Reading Team, Barcelona, Spain.
Roberto Gallego-PinazoOptretina Image Reading Team, Barcelona, Spain.
Estanislao Gutiérrez-SánchezOptretina Image Reading Team, Barcelona, Spain.
Andrea OléñikOptretina Image Reading Team, Barcelona, Spain.
Salvador PastorOptretina Image Reading Team, Barcelona, Spain.
Jorge Ruiz-MedranoOptretina Image Reading Team, Barcelona, Spain.
Cecilia SalinasOptretina Image Reading Team, Barcelona, Spain.
Susana Otero-RomeroServicio de Medicina preventiva y epidemiología, Hospital Vall Hebron, Barcelona, Spain.
Maximino AbraldesOptretina Image Reading Team, Barcelona, Spain.
On behalf Optretina reading group
Instituto de Microcirugía Ocular · ESComplejo Hospitalario Universitario de Santiago · ESHospital Clínico Universitario de Valladolid · ESHospital Universitario Puerta de Hierro Majadahonda · ESHospital Universitario Virgen Macarena · ESMarine Technology Unit · ESVall d'Hebron Hospital Universitari · ES

Funding

Allergan PG-2020-10825
6 · The paper itself

Abstract

purposeTo evaluate the prevalence of AMD among optometric telemedicine users in Spain and to identify risk factors.

methodsRetrospective analysis of a nationwide database conducted on subjects attending to optometry centers, between January 2013 and December 2019. Fundus photographs were performed by optometrists, using non-mydriatic cameras, and evaluated by a group of 12 retina specialists.

resultsAmong the 119,877 subjects included, the overall prevalence of AMD was 7.6%. The prevalence of early, intermediate, and advanced AMD was 2.9%, 2.7%, and 2.0%, respectively. Of the 9129 AMD subjects, 1161 (12.7%) had geographic atrophy, and 1089 (11.9%) had neovascular AMD, either scar (4.5%) or exudative (7.4%). There was a significant association between AMD and age (per year older, adjusted odds ratio, OR 1.116; 95% CI 1.114 to 1.119, p<0.0001). Women had higher prevalence (adjusted OR 1.17; 95% CI 1.12 to 1.23, p<0.0001). Every diopter (spherical equivalent) of progress toward hyperopia was associated with a significant increase in early AMD prevalence (adjusted OR 1.02, 95 CI 1.01 to 1.04, p=0.0074). Presence of diabetes was associated with a lower AMD prevalence (p<0.0001).

conclusionsThe prevalence of AMD (any eye and any severity) was 7.6%, with a prevalence of advanced AMD of 2.0%. Older age and women were significantly associated with a higher prevalence of AMD, whereas myopia and presence of diabetes were associated with significantly lower odds of any AMD.

Indexed as

OptometryTelemedicineWet Macular DegenerationAgedAngiogenesis InhibitorsCross-Sectional StudiesFemaleHumansMalePrevalenceRetrospective StudiesRisk FactorsSpainVascular Endothelial Growth Factor AVisual AcuityAngiogenesis InhibitorsVascular Endothelial Growth Factor AAge-related macular degenerationEpidemiologyMaculaPrevalenceRetinaRetinal disordersRisk factorsTelemedicine

Identifiers

PMID33576860
OpenAlexW3128595111

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.