Evidence map›Paper›PMID 38970233›Full record

Trial reportActa ophthalmologica2025

Early findings in a randomised controlled trial on crosslinking protocols using isoosmolar and hypoosmolar riboflavin for the treatment of progressive keratoconus.

Ingemar Gustafsson, Thorbjörg Olafsdottir, Olof Neumann, Per Johansson, Dimitrios Bizios, Anders Ivarsen, Jesper Ø Hjortdal

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Acta ophthalmologica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Review
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.

Ingemar GustafssonDepartment of Ophthalmology, Skåne University Hospital, Malmö, Sweden.ORCID https://orcid.org/0000-0001-7001-0202
Thorbjörg OlafsdottirDepartment of Ophthalmology, Skåne University Hospital, Malmö, Sweden.
Olof NeumannDepartment of Ophthalmology, Skåne University Hospital, Malmö, Sweden.
Per JohanssonDepartment of Ophthalmology, Skåne University Hospital, Malmö, Sweden.
Dimitrios BiziosDepartment of Ophthalmology, Skåne University Hospital, Malmö, Sweden.
Anders IvarsenDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.
Jesper Ø HjortdalDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo present baseline characteristics and to present the perioperative corneal thickness during corneal crosslinking (CXL) treatment for progressive keratoconus and to describe how the addition of sterile water (SW) efficaciously can maintain the corneal thickness. The treatment efficacy will be evaluated when the 1-year follow-up is complete.

methodsA randomised clinical study using epithelium-off CXL with continuous UVA irradiation (9 mW/cm INCLUSION CRITERIA: progressive keratoconus with an increase in maximum keratometry value (Kmax) of 1.0 dioptre (12 months) or 0.5 dioptres (6 months). Corneae thinner than 400 μm were also included. OUTCOME PARAMETERS: Perioperative corneal thickness and the effect of adding SW.

resultsSeventy-four per cent of the patients in the isoosmolar group and 15% in the hypoosmolar group required the addition of SW, which effectively maintained a corneal thickness of 400 μm in all cases during CXL. The addition of SW was primarily needed during the irradiation procedure and not the preoperative soaking period.

conclusionsEspecially during the CXL irradiation phase, isoosmolar riboflavin causes a significant dehydrating effect leading to corneal thinning during CXL. The customised addition of SW is efficacious in maintaining the corneal thickness during CXL and could increase the safety of the procedure.

Indexed as

CollagenCorneal TopographyCross-Linking ReagentsKeratoconusPhotochemotherapyPhotosensitizing AgentsRiboflavinUltraviolet RaysVisual AcuityAdolescentAdultCorneaCorneal PachymetryCorneal StromaDisease ProgressionFemaleCollagenCross-Linking ReagentsPhotosensitizing AgentsRiboflavincorneal crosslinkingkeratoconusprogressive keratoconusriboflavin

Identifiers

PMID38970233
PMCPMC11704820

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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.