Evidence map›Paper›PMID 20881291›Full record

ArticleInvestigative ophthalmology & visual science2011

Persons with age-related maculopathy risk genotypes and clinically normal eyes have reduced mesopic vision.

Beatrix Feigl, Dingcai Cao, Charles P Morris, Andrew J Zele

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
5.1field-weighted citation impact, top 5% 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

18 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
  2. Trichromatic critical flicker frequency as potential visual test in cataract and macula disease patients.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  3. Age-related normal limits for spatial vision.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2022
    Article
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  16. Visual Function Endpoints to Enable Dry AMD Clinical Trials.Drug discovery today. Therapeutic strategies · 2013
    Article
  17. Review
  18. Isolated mesopic rod and cone electroretinograms realized with a four-primary method.Documenta ophthalmologica. Advances in ophthalmology · 2011
    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

4 authors at 1 institution in 1 country.

Beatrix FeiglInstitute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia. b.feigl@qut.edu.au
Dingcai Cao
Charles P Morris
Andrew J Zele
Queensland University of Technology · AU

Funding

Rod Cone Interactions in Mesopic VisionR01EY019651 · NEI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI CAO, DINGCAI · 2010 to 2013
$1.3M
NEI NIH HHS R01 EY019651NEI NIH HHS R01-EY019651
6 · The paper itself

Abstract

purposeTo determine whether participants with normal visual acuity, no ophthalmoscopically signs of age-related maculopathy (ARM) in both eyes, and who are carriers of the CFH, LOC387715, and HRTA1 high-risk genotypes (gene-positive) have impaired rod- and cone-mediated mesopic visual function compared with persons who do not carry the risk genotypes (gene-negative).

methodsFifty-three Caucasian study participants (mean 55.8 ± 6.1) were genotyped for CFH, LOC387715/ARMS2, and HRTA1 polymorphisms. Single-nucleotide polymorphisms were genotyped in the CFH (rs380390), LOC387715/ARMS2 (rs10490924), and HTRA1 (rs11200638) genes using optimized gene-expression assays. The critical fusion frequency (CFF) mediated by cones alone (long-, middle-, and short-wavelength sensitive cones, LMS) and by the combined activities of cones and rods (LMSR) were determined. The stimuli were generated using a four-primary photostimulator that provides independent control of the photoreceptor excitation under mesopic light levels. Visual function was further assessed using standard clinical tests, flicker perimetry, and microperimetry.

resultsThe mesopic CFF mediated by rods and cones (LMSR) was significantly reduced in gene-positive compared to gene-negative participants after correction for age (P = 0.03). Cone-mediated CFF (LMS) was not significantly different between gene-positive and -negative participants. There were no significant associations between flicker perimetry and microperimetry and genotype.

conclusionsThis is the first study to relate ARM risk genotypes with mesopic visual function in clinically normal persons. These preliminary results could become of clinical importance because mesopic vision may be used as a biomarker to document subclinical retinal changes in persons with risk genotypes and to determine whether those persons progress into manifest disease.

Indexed as

Polymorphism, Single NucleotideAgedComplement Factor HFemaleGene Expression ProfilingGenotypeHeterozygoteHigh-Temperature Requirement A Serine Peptidase 1HumansMacular DegenerationMaleMesopic VisionMiddle AgedPhotoreceptor Cells, VertebrateProteinsRisk FactorsARMS2 protein, humanCFH protein, humanComplement Factor HHigh-Temperature Requirement A Serine Peptidase 1HTRA1 protein, humanProteinsSerine Endopeptidases

Identifiers

PMID20881291
PMCPMC3053098
OpenAlexW2034394651

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.