Evidence map›Paper›PMID 26858842›Full record

ArticleJournal of ophthalmology2015

Evaluation of Intrastromal Riboflavin Concentration in Human Corneas after Three Corneal Cross-Linking Imbibition Procedures: A Pilot Study.

Antonella Franch, Federica Birattari, Gloria Dal Mas, Zala Lužnik, Mohit Parekh, Stefano Ferrari, Diego Ponzin

Open access · goldAbstract read
In one paragraph

Article in Journal of ophthalmology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.9field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Transepithelial corneal cross-linking: a review.International ophthalmology · 2026
    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

7 authors at 2 institutions in 2 countries.

Antonella FranchDepartment of Ophthalmology, SS Giovanni e Paolo Hospital, Sestiere Castello 6777, 30122 Venice, Italy.
Federica BirattariDepartment of Ophthalmology, SS Giovanni e Paolo Hospital, Sestiere Castello 6777, 30122 Venice, Italy.
Gloria Dal MasDepartment of Ophthalmology, SS Giovanni e Paolo Hospital, Sestiere Castello 6777, 30122 Venice, Italy.
Zala LužnikFondazione Banca degli Occhi del Veneto, c/o Padiglione G. Rama, Via Paccagnella 11, Zelarino, 30174 Venice, Italy; Eye Hospital, University Medical Centre, Grablovičeva Ulica 46, 1525 Ljubljana, Slovenia.
Mohit ParekhFondazione Banca degli Occhi del Veneto, c/o Padiglione G. Rama, Via Paccagnella 11, Zelarino, 30174 Venice, Italy.
Stefano FerrariFondazione Banca degli Occhi del Veneto, c/o Padiglione G. Rama, Via Paccagnella 11, Zelarino, 30174 Venice, Italy.
Diego PonzinFondazione Banca degli Occhi del Veneto, c/o Padiglione G. Rama, Via Paccagnella 11, Zelarino, 30174 Venice, Italy.
Veneto Eye Bank Foundation · ITOspedale San Paolo · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose. To compare stromal riboflavin concentration after three corneal cross-linking (CXL) imbibition procedures: standard (EpiOff), transepithelial corneal (EpiOn), and iontophoresis-assisted technique (Ionto) using 0.1% hypotonic riboflavin phosphate. Methods. Randomized open-label pilot clinical study. Twelve corneas/12 patients with advanced keratoconus were randomly divided into 4 groups for CXL (n = 3). The corneas underwent imbibition with standard riboflavin EpiOff and with enhanced riboflavin solution (RICROLIN+) EpiOff, EpiOn, and iontophoresis techniques. Thereafter, deep anterior lamellar keratectomy procedure was performed and the obtained debrided corneal tissues were frozen. The maximal intrastromal riboflavin concentration was measured by high-performance liquid chromatography/mass spectrometry (mcg/dg). Results. The mean stromal concentration of riboflavin was 2.02 ± 0.72 mcg/dg in EpiOff group, 4.33 ± 0.12 mcg/g in EpiOff-RICROLIN+ group, 0.63 ± 0.21 mcg/dg in EpiOn-RICROLIN+ group, and 1.15 ± 0.27 mcg/dg in iontophoresis RICROLIN+ group. A 7-fold decrease in intrastromal riboflavin concentration was observed comparing EpiOn-RICROLIN+ and EpiOff-RICROLIN+ groups. Conclusion. The present pilot study indicates that both transepithelial CXL techniques in combination with hypotonic enhanced riboflavin formulation (RICROLIN+) were still inferior to the standard CXL technique; however, larger clinical studies to further validate the results are needed and in progress.

Identifiers

PMID26858842
PMCPMC4709688
OpenAlexW2208580586

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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.