Evidence map›Paper›PMID 29641938›Full record

ArticleCurrent eye research2018

In Vivo Imaging of the Retina, Choroid, and Optic Nerve Head in Guinea Pigs.

Ashutosh Jnawali, Krista M Beach, Lisa A Ostrin

Open access · greenAbstract read
In one paragraph

Article in Current eye research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

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  12. Frontiers in medicine · 2021
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  13. Retinal ganglion cell ablation in guinea pigs.Experimental eye research · 2021
    Article
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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

3 authors at 1 institution in 1 country.

Ashutosh Jnawalia College of Optometry , University of Houston , Houston , TX , USA.
Krista M Beacha College of Optometry , University of Houston , Houston , TX , USA.
Lisa A Ostrina College of Optometry , University of Houston , Houston , TX , USA.
University of Houston · US

Funding

Research Programming ModuleP30EY007551 · NEI · UNIVERSITY OF HOUSTON · PI GEUNYOUNG YOON · 1988 to 2026
$16.4M
Structural and Functional Changes in Myopia and Susceptibility to GlaucomaK08EY022696 · NEI · UNIVERSITY OF HOUSTON · PI OSTRIN, LISA A · 2012 to 2016
$826k
NEI NIH HHS K08 EY022696NEI NIH HHS P30 EY007551
6 · The paper itself

Abstract

purposeGuinea pigs are increasingly being used as a model of myopia, and may also represent a novel model of glaucoma. Here, optical coherence tomography (OCT) imaging was performed in guinea pigs. In vivo measurements of retinal, choroidal, and optic nerve head parameters were compared with histology, and repeatability and interocular variations were assessed.

methodsOCT imaging and histology were performed on adult guinea pigs (n = 9). Using a custom program in MATLAB, total retina, ganglion cell/nerve fiber layer (GC/NFL), outer retina, and choroid thicknesses were determined. Additionally, Bruch's membrane opening (BMO) area and diameter, and minimum rim width were calculated. Intraobserver, interocular, and intersession coefficients of variation (CV) and intraclass correlation coefficients (ICC) were assessed.

resultsRetina, GC/NFL, outer retina and choroid thicknesses from in vivo OCT imaging were 147.7 ± 5.8 μm, 59.2 ± 4.5 μm, 72.4 ± 2.4 μm, and 64.8 ± 11.6 μm, respectively. Interocular CV ranged from 1.8% to 11% (paired t-test, p = 0.16 to 0.81), and intersession CV ranged from 1.1% to 5.6% (p = 0.12 to 0.82), with the choroid showing the greatest variability. BMO area was 0.192 ± 0.023 mm

conclusionIn vivo OCT imaging and quantification of guinea pig retina and optic nerve head parameters were repeatable and similar between eyes of the same animal. In vivo visibility of retinal cell layers correlated well with histological images. ABBREVIATIONS: optic nerve head (ONH), retinal ganglion cell (RGC), spectral domain optical coherence tomography (SD-OCT), enhanced depth imaging (EDI), minimum rim width (MRW), hematoxylin and eosin (H & E).

Indexed as

AnimalsBruch MembraneChoroidDisease Models, AnimalFemaleGuinea PigsMaleMyopiaNerve FibersOptic DiskRefraction, OcularRetinal Ganglion CellsTomography, Optical Coherencechoroidguinea pigIn vivo imagingoptic nerve headretinaSD-OCT

Identifiers

PMID29641938
PMCPMC6097717
OpenAlexW2796850057

What OpenQuestion holds

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LicenceTDM
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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.