Evidence map›Paper›PMID 31235310›Full record

ArticleOphthalmology. Retina2019

Visual Function at the Atrophic Border in Choroideremia Assessed with Adaptive Optics Microperimetry.

William S Tuten, Grace K Vergilio, Gloria J Young, Jean Bennett, Albert M Maguire, Tomas S Aleman, David H Brainard, Jessica I W Morgan

Open access · greenAbstract read
In one paragraph

Article in Ophthalmology. Retina, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 7% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  15. Retinal Sensitivity in Comparison to Cone Density in Choroideremia.Investigative ophthalmology & visual science · 2024
    Article
  16. Article
  17. Review
  18. Intervisit Reproducibility of Foveal Cone Density Metrics.Translational vision science & technology · 2024
    Article
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  20. Review
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

8 authors at 2 institutions in 1 country.

William S TutenScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania.
Grace K VergilioScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania.
Gloria J YoungScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania.
Jean BennettScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania.
Albert M MaguireScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania.
Tomas S AlemanScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania.
David H BrainardDepartment of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania.
Jessica I W MorganScheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania; Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address: jwmorgan@pennmedicine.upenn.edu.
Penn Presbyterian Medical Center · USUniversity of Pennsylvania · US

Funding

Scientific TransparencyP30EY001583 · NEI · UNIVERSITY OF PENNSYLVANIA · PI Qi N Cui · 1985 to 2026
$19.5M
Platform Technologies for Microscopic Retinal Imaging: Development & TranslationU01EY025477 · NEI · STANFORD UNIVERSITY · PI DUBRA, ALFREDO · 2015 to 2019
$4.4M
Retinal structure, function and response to gene therapyR01EY028601 · NEI · UNIVERSITY OF PENNSYLVANIA · PI Jessica I.W. Morgan · 2018 to 2026
$3.6M
NEI NIH HHS P30 EY001583NEI NIH HHS R01 EY028601NEI NIH HHS U01 EY025477
6 · The paper itself

Abstract

purposeRecent advances in retinal imaging allow visualization of structural abnormalities in retinal disease at the cellular level. This study used adaptive optics (AO) microperimetry to assess visual sensitivity with high spatial precision and to examine how function varies across 2 phenotypic features observed in choroideremia: atrophic lesion borders and outer retinal tubulations (ORTs).

designCross-sectional study.

participantsTwelve choroideremia patients.

methodsA custom AO scanning light ophthalmoscope (AOSLO) equipped with both confocal and nonconfocal split-detection imaging methods was used to image the photoreceptor inner and outer segment mosaics. For AO microperimetry, circular 550-nm stimuli were presented through the AOSLO system; stimuli were either 9.6 or 38.3 arcmin

main outcome measureVisual sensitivity thresholds measured with AO microperimetry at retinal locations corresponding to structural phenotypes observed on AOSLO retinal images.

resultsIn choroideremia, sharp borders between intact central islands of the photoreceptor mosaic and complete atrophy of the outer retina and retinal pigment epithelium were observed in both split-detection and confocal structural images. Adaptive optics microperimetry at locations spanning these borders showed a commensurately sharp decrease in function, with readily measurable visual sensitivity on one side and dense scotoma on the other. These functional transitions often occurred over a distance smaller than the diameter of the Goldman III stimulus. Thresholds measured along ORTs showed dense scotoma over the tubule in all 4 participants, despite the visibility of remnant cone inner segments on the AO images.

conclusionsChoroideremia patients exhibited sharp functional transitions that collocated with structural transitions from intact to severely degenerated retina. We found no evidence of visual sensitivity over ORTs. Measuring cone function with high resolution offered insight into disease mechanisms and may enable precise assessment of whether experimental therapies, such as gene therapy, provide a functional benefit.

Indexed as

Visual AcuityVisual FieldsAdultChoroideremiaCross-Sectional StudiesHumansMaleMiddle AgedOphthalmoscopyRetinal Pigment EpitheliumScotomaTomography, Optical CoherenceYoung Adult

Identifiers

PMID31235310
PMCPMC6778501
OpenAlexW2944615551

What OpenQuestion holds

Textmetadata
LicenceTDM
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.