Evidence map›Paper›PMID 35175279›Full record

ArticleInvestigative ophthalmology & visual science2022

Spatial Characteristics of Peripheral Visual Islands in Retinitis Pigmentosa.

Tapan P Patel, Hursuong Vongsachang, Andrew Schilling, Xiangrong Kong, Mandeep S Singh

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 54% 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

3 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Review
  3. 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

5 authors at 2 institutions in 1 country.

Tapan P PatelWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States.
Hursuong VongsachangWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States.
Andrew SchillingWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States.
Xiangrong KongWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States.
Mandeep S SinghWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States.
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Wilmer Core Grant for Vision ResearchP30EY001765 · NEI · JOHNS HOPKINS UNIVERSITY · PI Jiang Qian · 1985 to 2026
$22.1M
NRSA Training CoreTL1TR003100 · NCATS · JOHNS HOPKINS UNIVERSITY · PI SAHA, SOMNATH · 2019 to 2023
$4.5M
Developing photoreceptor repair for macular degeneration therapy.R01EY033103 · NEI · JOHNS HOPKINS UNIVERSITY · PI SINGH, MANDEEP · 2021 to 2025
$2.0M
NCATS NIH HHS TL1 TR003100NEI NIH HHS P30 EY001765NEI NIH HHS R01 EY033103
6 · The paper itself

Abstract

Purpose: Retinitis pigmentosa (RP) is typified by progressive peripheral visual field (pVF) loss in patterns that can vary between individuals. Greater understanding of pVF preservation may inform research on therapeutic targets. However, characteristics of retained pVF are incompletely understood. We aimed to evaluate the spatial characteristics of retained pVF in RP. Methods: We developed a computational platform to generate a probability map of the spatial distribution of retained pVF loci using the Goldmann V4e isopter. RP subjects were grouped into cross-sectional and longitudinal datasets. Probability maps of retained pVF were generated for categories of symptomatic disease duration (SDD). We applied a mathematical model to determine the anatomical correlate of the retained pVF. Results: A total of 152 subjects were included. The mean age was 46.7 years. SDD was <20 years (47.4%), 20 to 40 years (39.5%), or >40 years (13.2%). Longitudinal data (3.2-5.7 years of follow up) were available for 65 subjects. In the cross-sectional dataset, retained pVF loci were most likely to be located between the 50° and 80° isoeccentric meridians and between the 30° to 50° radial axes. In the longitudinal dataset, inferotemporal pVF loci were the most likely to be preserved over time. The area of pVF retention corresponded anatomically to the pre-equatorial superonasal retina. Conclusions: Semiautomated quantitation of pVF may be a useful tool to analyze spatial characteristics of VF in RP. Retinal cells in the superonasal periphery may be resilient to RP-related functional decline. Understanding the cellular and molecular basis of pVF resilience in the retina may inform efforts to develop treatment modalities for RP.

Indexed as

AdultAlgorithmsCross-Sectional StudiesFemaleFollow-Up StudiesHumansMaleMiddle AgedProbabilityRetinaRetinitis PigmentosaRetrospective StudiesSpatial AnalysisVisual FieldsVisual Field TestsVisual Perception

Identifiers

PMID35175279
PMCPMC8857617
OpenAlexW4212815059

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.