Evidence map›Paper›PMID 27091854›Full record

ArticleThe British journal of ophthalmology2017

Relationship between macular pigment and visual function in subjects with early age-related macular degeneration.

Kwadwo Owusu Akuffo, John M Nolan, Tunde Peto, Jim Stack, Irene Leung, Laura Corcoran, Stephen Beatty

Open access · hybridAbstract read
In one paragraph

Article in The British journal of ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Comparing 2-dimensional macular pigment optical density with objective and subjective perimetry and visual acuity in age-related macular degeneration.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  3. Observational
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Fluorescence Lifetime Imaging Ophthalmoscopy (FLIO) of Macular Pigment.Investigative ophthalmology & visual science · 2018
    Article
  12. Review
  13. Article
  14. 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

7 authors at 2 institutions in 2 countries.

Kwadwo Owusu AkuffoNutrition Research Centre Ireland, Macular Pigment Research Group, School of Health Sciences, Waterford Institute of Technology, Waterford, Ireland.ORCID 0000-0001-6683-249X
John M NolanNutrition Research Centre Ireland, Macular Pigment Research Group, School of Health Sciences, Waterford Institute of Technology, Waterford, Ireland.
Tunde PetoNIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK.
Jim StackNutrition Research Centre Ireland, Macular Pigment Research Group, School of Health Sciences, Waterford Institute of Technology, Waterford, Ireland.
Irene LeungNIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK.
Laura CorcoranNutrition Research Centre Ireland, Macular Pigment Research Group, School of Health Sciences, Waterford Institute of Technology, Waterford, Ireland.
Stephen BeattyNutrition Research Centre Ireland, Macular Pigment Research Group, School of Health Sciences, Waterford Institute of Technology, Waterford, Ireland.
Waterford Institute of Technology · IEMoorfields Eye Hospital NHS Foundation Trust · GB

Funding

European Research Council 281096
6 · The paper itself

Abstract

purposeTo investigate the relationship between macular pigment (MP) and visual function in subjects with early age-related macular degeneration (AMD).

methods121 subjects with early AMD enrolled as part of the Central Retinal Enrichment Supplementation Trial (CREST; ISRCTN13894787) were assessed using a range of psychophysical measures of visual function, including best corrected visual acuity (BCVA), letter contrast sensitivity (CS), mesopic and photopic CS, mesopic and photopic glare disability (GD), photostress recovery time (PRT), reading performance and subjective visual function, using the National Eye Institute Visual Function Questionnaire-25 (NEI VFQ-25). MP was measured using customised heterochromatic flicker photometry.

resultsLetter CS, mesopic and photopic CS, photopic GD and mean reading speed were each significantly (p<0.05) associated with MP across a range of retinal eccentricities, and these statistically significant relationships persisted after controlling for age, sex and cataract grade. BCVA, NEI VFQ-25 score, PRT and mesopic GD were unrelated to MP after controlling for age, sex and cataract grade (p>0.05, for all).

conclusionsMP relates positively to many measures of visual function in unsupplemented subjects with early AMD. The CREST trial will investigate whether enrichment of MP influences visual function among those afflicted with this condition. TRIAL REGISTRATION NUMBER: ISRCTN13894787.

Indexed as

AgedContrast SensitivityFemaleHumansMacula LuteaMacular DegenerationMacular PigmentMaleMiddle AgedPhotophobiaReadingRecovery of FunctionStress, PhysiologicalVisual AcuityVisual PerceptionMacular PigmentDegenerationMaculaPsychophysicsRetinaVision

Identifiers

PMID27091854
PMCPMC5293853
OpenAlexW2337263880

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.