- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02624791
Evaluating and Improving Functional Driving Vision of Patients With Astigmatism
Aperçu de l'étude
Statut
Les conditions
Description détaillée
Safe driving relies heavily on "good vision." Good vision while driving relates to multiple abilities, such as dynamic visual acuity, contrast sensitivity, management of glare and peripheral vision, etc. While spherical contact lenses address issues of correction of visual acuity as determined by forward static vision tests, if they do not provide visual acuity both immediately and smoothly with eye movement then vision can be compromised. Glare can be a problem as well when contact lenses are off center. Fluctuating vision as a result of lens movement on the eye could be especially problematic and frustrating for patients who have astigmatism. Furthermore, experiencing moments of blurred vision no matter how brief can be potentially hazardous while driving. The 1*DAY ACUVUE® MOIST for ASTIGMATISM contact lenses have a unique blink-activated stabilization system to prevent rotation of the lens on the eye, and may have significant visual advantages for drivers with astigmatism. These lenses provide continuous corrected acuity compared to non-ballasted contact lenses, and thus are potentially safer for driving. Contact comparison will consist of 1*DAY ACUVUE® MOIST (spherical control) versus 1*DAY ACUVUE® MOIST for ASTIGMATISM (the daily disposable astigmatism alternative).
The study will investigate the potential advantages of contact lenses specifically designed to correct for astigmatism, compared to similar correction with spherical contacts, for adult licensed drivers with astigmatism, employing a double-blind (subjects and research assistant blind to hypotheses), randomized, cross-over design (spherical, vs. astigmatism contacts). This will be a multi-stage study comprised of the following:
Preliminary study to determine the likelihood of detecting a significant difference between the standard spherical and astigmatism contacts in a full Randomize Clinical Trial (n=12; data and power analysis)
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
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Virginia
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Charlottesville, Virginia, États-Unis, 22908
- University of Virginia Driving Safety Lab
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Adult licensed drivers between the ages of 18-39, similar number of males and females will be studied who meet the following inclusion criteria:
- Bilateral corrected vision of 20/40 or better
- Bilateral astigmatism between 0.75 to 2.0 diopters, with spherical correction from -1 to -6
- No active eye infection
- No defective peripheral vision
- Do not have correction for bifocals
- Routinely wear contact lenses more than 4 times per week
- Routinely drive a car more than 4 times week
- Do not have a history of motion, sea or big screen (e.g. IMAX) sickness or experience persistent Simulation Adaptation Syndrome
Exclusion Criteria:
- Bilateral corrected vision of worse than 20/40
- No astigmatism
- Active eye infection
- Defective peripheral vision
- Wear bifocals
- Wears contact lenses less than 4 times per week
- Drives infrequently (less than 4 times per week)
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
---|---|
Expérimental: Lens sequence 1
No contact lenses; 1-DAY ACUVUE® MOIST contact lenses; 1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses |
spherical contact lenses worn during simulated driving tests
toric contact lenses worn during simulated driving tests
simulated driving tests
|
Expérimental: Lens sequence 2
No contact lenses; 1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses; 1-DAY ACUVUE® MOIST contact lenses |
spherical contact lenses worn during simulated driving tests
toric contact lenses worn during simulated driving tests
simulated driving tests
|
Expérimental: Lens sequence 3
1-DAY ACUVUE® MOIST contact lenses; No contact lenses; 1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses |
spherical contact lenses worn during simulated driving tests
toric contact lenses worn during simulated driving tests
simulated driving tests
|
Expérimental: Lens sequence 4
1-DAY ACUVUE® MOIST contact lenses; 1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses; No contact lenses |
spherical contact lenses worn during simulated driving tests
toric contact lenses worn during simulated driving tests
simulated driving tests
|
Expérimental: Lens sequence 5
1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses; 1-DAY ACUVUE® MOIST contact lenses; No contact lenses |
spherical contact lenses worn during simulated driving tests
toric contact lenses worn during simulated driving tests
simulated driving tests
|
Expérimental: Lens sequence 6
1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses; No contact lenses; 1-DAY ACUVUE® MOIST contact lenses |
spherical contact lenses worn during simulated driving tests
toric contact lenses worn during simulated driving tests
simulated driving tests
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Tactical Composite Score
Délai: 1 day laboratory study
|
Z-score composite of tactical testing outcomes
|
1 day laboratory study
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Operational Composite Score
Délai: 1 day laboratory study
|
Z-score composite of operational testing outcomes
|
1 day laboratory study
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Daniel J Cox, Ph.D., University of Virginia
Publications et liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 15920
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
produit fabriqué et exporté des États-Unis.
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .
Essais cliniques sur 1-DAY ACUVUE® MOIST contact lenses
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