Evidence map›Paper›PMID 37193933›Full record

ArticleInternational ophthalmology2023

The effect of filters and varying illumination on contrast sensitivity in eyes with moderate to severe visual impairment.

Carl Halladay Abraham, Enyam Morny, Asantewaa Aboagye-MacCarthy, Stephen Ocansey, Michael Ntodie, Godfred Sakyi-Badu, Albert Kofi Dadzie, Naa Adjeley Addo, Selina Holdbrook, Emmanuel Kwasi Abu

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Article in International ophthalmology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 5 citations in OpenAlex.

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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

10 authors at 1 institution in 1 country.

Carl Halladay AbrahamDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Enyam MornyDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Asantewaa Aboagye-MacCarthyDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana. aamaccarthy@stu.ucc.edu.gh.ORCID http://orcid.org/0000-0003-4134-2595
Stephen OcanseyDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Michael NtodieDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Godfred Sakyi-BaduDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Albert Kofi DadzieDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Naa Adjeley AddoDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Selina HoldbrookDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
Emmanuel Kwasi AbuDepartment of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
University of Cape Coast · GH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the effect of filters and illumination on contrast sensitivity in persons with cataract, pseudophakia, maculopathy and glaucoma to provide a guide for eye care providers in low vision rehabilitation. MATERIALS AND

methodsA within-subjects experimental design with a counter-balanced presentation technique was employed in this study. The contrast sensitivity of eyes with cataract, pseudophakia, maculopathy and glaucoma was measured with filters (no filter, yellow, pink and orange) combined with increasing illumination levels (100 lx, 300 lx, 700 lx and 1000 lx) using the SpotChecks™ contrast sensitivity chart. The data were analyzed using descriptive statistics and two-way repeated measures ANOVA.

resultsThe yellow filter at 100 lx significantly improved contrast sensitivity in the maculopathy group. There were no significant improvements with either intervention in the rest of the groups. There was, however, a significant interaction between filters and illumination in the cataract group.

conclusionThere were small improvements in contrast sensitivity at low illumination levels with the yellow filter in the maculopathy group, and this could be considered in clinical practice and low vision rehabilitation. Overall, filters at most illumination levels did not benefit most groups.

Indexed as

CataractGlaucomaMacular DegenerationRetinal DiseasesVision, LowContrast SensitivityHumansLightingPseudophakiaVision DisordersContrast sensitivityFiltersIlluminationLow visionVision rehabilitation

Identifiers

PMID37193933
OpenAlexW4376639766

What OpenQuestion holds

Textmetadata
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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.