Evidence map›Paper›PMID 31921516›Full record

ArticleTranslational vision science & technology2019

Microperimetry in Age-Related Macular Degeneration: An Evidence-Base for Pattern Deviation Probability Analysis in Microperimetry.

Nicola K Cassels, John M Wild, Tom H Margrain, Chris Blyth, Victor Chong, Jennifer H Acton

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2019. 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
1.1field-weighted citation impact, top 23% 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, 8 citations in OpenAlex.

  1. Article
  2. Multicenter Normative Data for Mesopic Microperimetry.Investigative ophthalmology & visual science · 2024
    Article
  3. Article
  4. Review
  5. Clinical Perspectives and Trends: Microperimetry as a Trial Endpoint in Retinal Disease.Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde · 2021
    Review
  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

6 authors at 3 institutions in 1 country.

Nicola K CasselsCollege of Biological and Life Sciences, Cardiff University, Cardiff, UK.
John M WildCollege of Biological and Life Sciences, Cardiff University, Cardiff, UK.
Tom H MargrainCollege of Biological and Life Sciences, Cardiff University, Cardiff, UK.
Chris BlythDepartment of Ophthalmology, University Hospital of Wales, Cardiff, UK.
Victor ChongDepartment of Ophthalmology, University of Oxford, Oxford, UK.
Jennifer H ActonCollege of Biological and Life Sciences, Cardiff University, Cardiff, UK.
Cardiff University · GBUniversity Hospital of Wales · GBUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe "traffic light" color designation of differential light sensitivity used in a number of microperimeters does not encompass the conventional Total and Pattern Deviation probability analyses adopted by standard automated perimetry. We determined whether the color designation is indicative of abnormality as represented by the "gold standard" Pattern Deviation probability analysis.

methodsTotal and Pattern Deviation probability levels, using two different methods, were derived at each of 40 stimulus locations, within 7° eccentricity, from 66 ocular healthy individuals (66 eyes) who had undergone microperimetry with the Macular Integrity Assessment microperimeter. The probability levels were applied to the corresponding fields from each of 45 individuals (45 eyes) with age-related macular degeneration (AMD) and evaluated in relation to the color designation.

resultsSensitivities designated in orange encompassed the entire range of Pattern Deviation probability levels (from normal to

conclusionsThe green and the red/black designations are generally indicative of normal and abnormal probability values, respectively. The orange designation encompassed all probability outcomes and should not be relied upon for visual field interpretation. The evidence base indicates replacement of the color designation of sensitivity in AMD by Total Deviation and Pattern Deviation analyses. TRANSLATIONAL RELEVANCE: The use of Total and Pattern Deviation probability analyses is not universal in all microperimeters, and the derivation of these values indicates that color coding will lead to errors in evaluating visual field loss.

Indexed as

age-related macular degenerationmicroperimetryperimetryvisual fields

Identifiers

PMID31921516
PMCPMC6944141
OpenAlexW2997668058

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.