Trial reportAddiction (Abingdon, England)2025
Visual function and vehicle driving performance under the effects of cannabidiol: A randomized cross-over experiment.
Trial report in Addiction (Abingdon, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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.
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.
Who cites it
3 citing papers in PubMed.
- Influence of Cannabidiol Use on Visual Function and Optical Quality: A Randomized Controlled Trial.Translational vision science & technology · 2025Trial
- Visual function and vehicle driving performance under the effects of cannabidiol: A randomized cross-over experiment.Addiction (Abingdon, England) · 2025Trial
- Relationships Between Motives for Cannabis and Cannabidiol Use in People Who Co-Use: Results From the European Web Survey on Drugs.Drug and alcohol review · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
aimsThis study aimed to determine the effect of vaporized cannabidiol (CBD) on visual function and vehicle driving performance, given the growing popularity of CBD use worldwide.
designRandomized, double-blind, placebo-controlled cross-over experimental study.
settingLaboratory of Vision Sciences and Applications, University of Granada, Spain.
participantsThirty participants were recruited through advertisements placed in the local newspaper and distributed among the university community. They had a mean age of 26.2 (6.2) years, and 70% were male. All of them were occasional users of CBD or cannabis, and held valid driving licenses.
interventionsThree experimental sessions, conducted one week apart, in which a placebo, 15% CBD (16 mg) or 30% CBD (32 mg) was vaporized. MEASUREMENTS: The primary endpoint for driving performance was the overall driving performance score (ODPS). Secondary outcomes included visual function variables such as static and dynamic visual acuity, stereoacuity, contrast sensitivity, motion detection and other driving performance parameters such as mean speed, lateral vehicle control or reaction time.
findingsComparisons revealed no statistically significant changes in ODPS after vaporizing CBD at 15% or 30% compared with the placebo (χ
conclusionsConsumption of vaporized cannabidiol in 16 mg and 32 mg doses does not appear to affect simulated vehicle driving performance and visual function.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.