Evidence map›Paper›PMID 31709244›Full record

ArticleFrontiers in bioengineering and biotechnology2019

Measurement of Ocular Compliance Using iPerfusion.

Joseph M Sherwood, Elizabeth M Boazak, Andrew J Feola, Kim Parker, C Ross Ethier, Darryl R Overby

Abstract read
In one paragraph

Article in Frontiers in bioengineering and biotechnology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Association of Age of Menopause and Glaucoma Diagnosis in Female Veterans.Investigative ophthalmology & visual science · 2024
    Article
  4. bioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Ocular pulse amplitude (OPA) in canineFrontiers in bioengineering and biotechnology · 2023
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Frontiers in bioengineering and biotechnology · 2021
    Article
  17. Integral role for lysyl oxidase-like-1 in conventional outflow tissue function and behavior.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  18. Age and Menopause Effects on Ocular Compliance and Aqueous Outflow.Investigative ophthalmology & visual science · 2020
    Article
  19. 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

6 authors.

Joseph M SherwoodDepartment of Bioengineering, Imperial College London, London, United Kingdom.
Elizabeth M BoazakWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States.
Andrew J FeolaWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States.
Kim ParkerDepartment of Bioengineering, Imperial College London, London, United Kingdom.
C Ross EthierWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States.
Darryl R OverbyDepartment of Bioengineering, Imperial College London, London, United Kingdom.

Funding

eNOS-Dependent Mechanoregulation of Intraocular PressureR01EY022359 · NEI · DUKE UNIVERSITY · PI STAMER, W DANIEL · 2012 to 2025
$5.6M
Genomic Loci Modulating Biomechanics and Glaucoma in Recombinant Inbred MiceR21EY026685 · NEI · GEORGIA INSTITUTE OF TECHNOLOGY · PI ETHIER, C ROSS · 2017 to 2018
$422k
The Effect of Estrogen Deficiencies on Vision Loss in GlaucomaIK2RX002342 · VA · VETERANS HEALTH ADMINISTRATION · PI FEOLA, ANDREW J · 2018 to 2023
–
NEI NIH HHS R01 EY022359NEI NIH HHS R21 EY026685RRD VA IK2 RX002342
6 · The paper itself

Abstract

The pressure-volume relationship of the eye is determined by the biomechanical properties of the corneoscleral shell and is classically characterised by Friedenwald's coefficient of ocular rigidity or, alternatively, by the ocular compliance (OC), defined as dV/dP. OC is important in any situation where the volume (V) or pressure (P) of the eye is perturbed, as occurs during several physiological and pathological processes. However, accurately measuring OC is challenging, particularly in rodents. We measured OC in 24 untreated enucleated eyes from 12 C57BL/6 mice using the iPerfusion system to apply controlled pressure steps, whilst measuring the time-varying flow rate into the eye. Pressure and flow data were analysed by a "Discrete Volume" (integrating the flow trace) and "Step Response" method (fitting an analytical solution to the pressure trace). OC evaluated at 13 mmHg was similar between the two methods (Step Response, 41 [37, 46] vs. Discrete Volume, 42 [37, 48] nl/mmHg; mean [95% CI]), although the Step Response Method yielded tighter confidence bounds on individual eyes. OC was tightly correlated between contralateral eyes (

Indexed as

corneaglaucomaocular complianceocular rigiditysclera

Identifiers

PMID31709244
PMCPMC6823226

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.