Evidence map›Paper›PMID 31832279›Full record

ArticleTranslational vision science & technology2019

Biomechanical and Morphologic Effects of Collagen Cross-Linking in Human Tarsus.

Shoaib Ugradar, Alan Le, Michael Lesgart, Robert A Goldberg, Daniel Rootman, Joseph L Demer

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 16 citations in OpenAlex.

  1. Crosslinking of tarsal collagen as a hypothetical therapy for dry eye disease.Medical hypothesis, discovery & innovation ophthalmology journal · 2025
    Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Collagen Structural Changes in Rat Tarsus After Crosslinking.Translational vision science & technology · 2021
    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 at 1 institution in 1 country.

Shoaib UgradarStein Eye Institute, University of California, Los Angeles, CA, USA.
Alan LeBioengineering Interdepartmental Program, University of California, Los Angeles, CA, USA.
Michael LesgartStein Eye Institute, University of California, Los Angeles, CA, USA.
Robert A GoldbergStein Eye Institute, University of California, Los Angeles, CA, USA.
Daniel RootmanStein Eye Institute, University of California, Los Angeles, CA, USA.
Joseph L DemerStein Eye Institute, University of California, Los Angeles, CA, USA.
University of California, Los Angeles · US

Funding

Vision Research Core at UCLAP30EY000331 · NEI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Gregory Darin Field, DAVID S WILLIAMS · 1985 to 2026
$16.8M
BIOMECHANICAL ANALYSIS IN STRABISMUS SURGERYR01EY008313 · NEI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JOSEPH Louis DEMER · 1991 to 2026
$15.0M
NEI NIH HHS P30 EY000331NEI NIH HHS R01 EY008313
6 · The paper itself

Abstract

purposeTo investigate the feasibility of increasing the stiffness of human tarsal tissue following treatment with riboflavin and ultraviolet A (UVA) to induce cross-linking of collagen fibers.

methodsIn this case control study, 18 right and left upper eyelids were excised en bloc from 18 fresh-frozen cadavers. One side served as the control while the samples from the opposite side were cross-linked. Four 2 × 6-mm vertical strips of central tarsus were cut from the superior to inferior border of each tarsal plate. Sample tissue was irradiated with UVA at 6 mW/cm

resultsMean Young's modulus in the linear region for controls was 28 ± 9 MPa and was much higher at 138 ± 8 MPa for cross-linked samples (

conclusionsThe findings of this study suggest that collagen cross-linking is a viable and effective modality for increasing the stiffness of human tarsal plates. TRANSLATIONAL RELEVANCE: This work provides proof that collagen cross-linking produces stiffening of the human tarsal plate and may be used in disorders that cause eyelid laxity.

Indexed as

cross-linkingfloppy eyelidstarsus

Identifiers

PMID31832279
PMCPMC6900964
OpenAlexW2993162398

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.