Evidence map›Paper›PMID 31823063›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2020

Short-term effects of caffeine intake on anterior chamber angle and intraocular pressure in low caffeine consumers.

Beatríz Redondo, Jesús Vera, Rubén Molina, Raimundo Jiménez

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.5field-weighted citation impact, top 8% 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, 27 citations in OpenAlex.

  1. Trial
  2. Effects of caffeine intake on the biomechanical properties of the cornea: a placebo-controlled, double-blind, crossover pilot study in low caffeine consumers.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2020
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  5. Acute intraocular pressure changes during isometric exercise in glaucoma patients: the influence of exercise and intensity.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
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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

4 authors at 1 institution in 1 country.

Beatríz RedondoDepartment of Optics, Faculty of Sciences, University of Granada, Campus de la Fuentenueva 2, 18001, Granada, Spain.
Jesús VeraDepartment of Optics, Faculty of Sciences, University of Granada, Campus de la Fuentenueva 2, 18001, Granada, Spain. veraj@ugr.es.ORCID http://orcid.org/0000-0001-8091-2373
Rubén MolinaDepartment of Optics, Faculty of Sciences, University of Granada, Campus de la Fuentenueva 2, 18001, Granada, Spain.
Raimundo JiménezDepartment of Optics, Faculty of Sciences, University of Granada, Campus de la Fuentenueva 2, 18001, Granada, Spain.
Universidad de Granada · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAcute caffeine consumption causes a transient increase in IOP; however, the mechanisms underlying this phenomenon remain unknown. This study aims to determine the structural changes in cornea and anterior chamber associated with caffeine ingestion.

methodsSeventeen healthy low caffeine consumers ingested a capsule of caffeine (~ 4 mg/kg) or placebo (300 mg of corn-starch) in a counterbalanced manner. We measured IOP by rebound tonometry and the anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) and central corneal thickness (CCT) with the Pentacam rotating Scheimpflug camera. Subjective feelings of arousal were also obtained. All the dependent variables were obtained before and 30, 60 and 90 min after caffeine/placebo intake.

resultsCaffeine intake caused an acute IOP rise (p = 0.005, η

conclusionThe IOP rise associated with caffeine intake may be caused by an ACA reduction, which may add resistance to the outflow of aqueous humour. The current results may be of special relevance for subjects at high risk for glaucoma onset or progression and may help to understand the mechanisms underlying caffeine-induced ocular hypertension.

Indexed as

Administration, OralAnterior ChamberCaffeineCentral Nervous System StimulantsCorneal TopographyDose-Response Relationship, DrugHumansIntraocular PressureReference ValuesTonometry, OcularCaffeineCentral Nervous System StimulantsAnterior chamberAqueous humourCaffeineIntraocular pressurePentacam

Identifiers

PMID31823063
OpenAlexW2993494950

What OpenQuestion holds

Textmetadata
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.