Evidence map›Paper›PMID 35572956›Full record

ArticleFrontiers in medicine2022

Valve-Like Outflow System Behavior With Motion Slowing in Glaucoma Eyes: Findings Using a Minimally Invasive Glaucoma Surgery-MIGS-Like Platform and Optical Coherence Tomography Imaging.

Murray Johnstone, Chen Xin, Ted Acott, Janice Vranka, Joanne Wen, Elizabeth Martin, Ruikang K Wang

Open access · goldAbstract read
In one paragraph

Article in Frontiers in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 11 citations in OpenAlex.

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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

7 authors at 3 institutions in 2 countries.

Murray JohnstoneDepartment of Ophthalmology, University of Washington, Seattle, WA, United States.
Chen XinDepartment of Ophthalmology, Tongren Hospital, Beijing, China.
Ted AcottDepartment of Ophthalmology, Casey Eye Institute, Portland, OR, United States.
Janice VrankaDepartment of Ophthalmology, Casey Eye Institute, Portland, OR, United States.
Joanne WenDepartment of Ophthalmology, Duke Eye Center, Durham, NC, United States.
Elizabeth MartinDepartment of Ophthalmology, Indiana University, Indianapolis, IN, United States.
Ruikang K WangDepartment of Ophthalmology, University of Washington, Seattle, WA, United States.
University of Washington · USIndiana University – Purdue University Indianapolis · USTongren Hospital · CN

Funding

Proteomics CoreP30EY010572 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Kate E Keller · 1995 to 2026
$19.4M
Molecular Mechanisms of Outflow Segmentation and Intraocular Pressure HomeostasisR01EY025721 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI ACOTT, TED S · 2015 to 2022
$2.8M
The Aqueous Humor Outflow ResistanceR01EY030238 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI TED S ACOTT · 2019 to 2026
$2.7M
Mechanotransduction in Aqueous Outflow Regulation and Open Angle GlaucomaR01EY026048 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI ACOTT, TED S, RAGHUNATHAN, VIJAYKRISHNA · 2018 to 2021
$1.5M
NEI NIH HHS P30 EY010572NEI NIH HHS R01 EY025721NEI NIH HHS R01 EY026048NEI NIH HHS R01 EY030238
6 · The paper itself

Abstract

Purpose: This study aimed to investigate anatomic relationships and biomechanics of pressure-dependent trabecular meshwork and distal valve-like structure deformation in normal and glaucoma eyes using high-resolution optical coherence tomography (HR-OCT). Methods: We controlled Schlemm's canal (SC) pressure during imaging with HR-OCT in segments of three normal (NL) and five glaucomatous (GL) Results: Lumen surface and internal relationships were successfully imaged. We identified SC inlet and outlet valve-like structures. In NL and GL, the mean SC areas measured at the steady-state of 0 and 30 mm Hg were each significantly different ( Conclusion: HR-OCT provided simultaneous measurements of outflow pathway lumen surfaces, internal structures, and biomechanics of real-time pressure-dependent dimension changes. We identified SC inlet and outlet valve-like structures. GL tissues underwent less motion and responded more slowly than NL, consistent with increased tissue stiffness. A MIGS-like shunt to SC permitted pulse waves to travel distally along SC lumen and into CC.

Indexed as

aqueous outflow regulationaqueous valvescollector channelsglaucomaintraocular pressure regulationMIGSOCTtrabecular meshwork

Identifiers

PMID35572956
PMCPMC9099151
OpenAlexW4225163052

What OpenQuestion holds

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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.