Evidence map›Paper›PMID 31279161›Full record

Trial reportActa biomaterialia2019

In vivo characterization of the deformation of the human optic nerve head using optical coherence tomography and digital volume correlation.

Dan E Midgett, Harry A Quigley, Thao D Nguyen

Open access · greenAbstract readClinical Trial
In one paragraph

Trial report in Acta biomaterialia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 56 citations in OpenAlex.

  1. Trial
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  9. The association between asymmetric stress distribution on the lamina cribrosa and glaucoma progression.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
  10. Considerations and implications of currentFrontiers in cell and developmental biology · 2025
    Review
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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 2 institutions in 1 country.

Dan E MidgettDepartment of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA. Electronic address: dmidget1@jhu.edu.
Harry A QuigleyWilmer Ophthalmological Institute, School of Medicine, The Johns Hopkins University, Baltimore, MD 21287, USA.
Thao D NguyenDepartment of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA; Department of Materials Science, The Johns Hopkins University, Baltimore, MD 21218, USA. Electronic address: vicky.nguyen@jhu.edu.
Johns Hopkins University · USJohns Hopkins Medicine · US

Funding

Wilmer Core Grant for Vision ResearchP30EY001765 · NEI · JOHNS HOPKINS UNIVERSITY · PI Ji Yi · 1985 to 2026
$22.1M
PATHOGENESIS OF GLAUCOMATOUS OPTIC NERVE DAMAGER01EY002120 · NEI · JOHNS HOPKINS UNIVERSITY · PI QUIGLEY, HARRY ALAN · 1985 to 2025
$12.6M
The Biomechanics of the Human Posterior Sclera: Effects of Age, Sex, and GlaucomaR01EY021500 · NEI · JOHNS HOPKINS UNIVERSITY · PI NGUYEN, THAO D · 2011 to 2016
$933k
NEI NIH HHS P30 EY001765NEI NIH HHS R01 EY002120NEI NIH HHS R01 EY021500
6 · The paper itself

Abstract

We developed a method to measure the 3-dimensional (3D) strain field in the optic nerve head (ONH) in vivo between two intraocular pressures (IOP). Radial optical coherence tomography (OCT) scans were taken of the ONH of 5 eyes from 5 glaucoma patients before and after IOP-lowering surgery and from 5 eyes from 3 glaucoma suspect patients before and after raising IOP by wearing tight-fitting swimming goggles. Scans taken at higher and lower IOP were compared using a custom digital volume correlation (DVC) algorithm to calculate strains in the anterior lamina cribrosa (ALC), retina, and choroid. Changes in anterior lamina depth (ALD) relative to Bruch's membrane were also analyzed. Average displacement error was estimated to be subpixel and strain errors were smaller than 0.37%. Suturelysis decreased IOP by 9-20 mmHg and decreased compressive anterior-posterior strain E

Indexed as

Tomography, Optical CoherenceAgedAged, 80 and overBruch MembraneFemaleGlaucomaHumansMaleMiddle AgedOptic NerveDigital volume correlationGlaucomaIntraocular pressureLamina cribrosaOptic nerve head

Identifiers

PMID31279161
PMCPMC6717668
OpenAlexW2955957846

What OpenQuestion holds

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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.