Clinical trials: Error, Refractive
Myopia; Astigmatism
Dispensing Evaluation of Investigational Contact Lenses
Non-randomized, single-masked, 2-visit, bilateral wear, single-arm dispensing study to evaluate the visual acuity, rotational performance, lens fit, stability and subjective characteristics of a senofilcon-based JJVCI…
- Trial name
- NCT02625220
- Testing
- Prototype toric lens senofilcon A
- Where
- 12 sites in United States
- Volunteers
- 177 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ametropia
Endothelial Bleb Response With Toric Lenses
Evaluate the short-term corneal response of oxygen deprivation when using toric contact lenses. The response will be noted by endothelial bleb formation in both open eye and closed eye state.
- Trial name
- NCT00630305
- Testing
- alphafilcon A toric, lotrafilcon B toric, senofilcon A toric
- Where
- Australia
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Corneal Astigmatism
Safety and Effectiveness of Arcuate Incisions Performed With the iFS Femtosecond Laser System
To determine if arcuate incisions performed with the iFS femtosecond laser are safe and effective in reducing corneal astigmatism.
- Trial name
- NCT01348854
- Testing
- iFS Femtosecond Laser System
- Where
- 4 sites in Austria, France and 1 more
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia
Cambridge Anti-Myopia Trial: Accommodation Training and Aberration Control in Myopia Development
We have identified focussing problems related to myopia getting worse. Our trial uses optical and orthoptic interventions that correct the focussing problems to see if this retards myopia progression.
- Trial name
- NCT00317551
- Testing
- Aberration controlled contact lens, Vision training
- Where
- United Kingdom
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University
Myopia, Pre-myopia
A Pilot Evaluation of Refractive Error Progression in Pre-Myopic Children in Singapore With and Without Myopia Control Spectacles
This study aims to find out whether ZEISS MyoActive lenses can help prevent short-sightedness from developing in children. We aim to recruit at least 50 children in total for this study.
- Trial name
- NCT07779941
- Testing
- Zeiss MyoActive lenses, Single Vision Lenses
- Where
- Singapore
- Volunteers
- 124 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Myopia, Myopic Astigmatism
Using the VisuMax Femtosecond Laser System to Perform SMILE Optimized for Presbyopia by Modulation of Postoperative Spherical Aberration
The intended purpose of the investigational device in the study is the correction of myopia and myopia with astigmatism in the CE (Conformité Européene) approved range and optimized for presbyopic patients using the treatment…
- Conditions
- Myopia, Myopic Astigmatism, Presbyopia
- Trial name
- NCT05684237
- Testing
- HiSMILE treatment option
- Where
- United Kingdom
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- London Vision Clinic
Amblyopia
Efficacy of Visual Screening in Ontario
Amblyopia (lazy eye), is the leading treatable cause of vision loss in childhood. Uncorrected refractive errors (ie farsightedness) can lead to difficulties in school.
- Trial name
- NCT02458846
- Testing
- Crowded HOTV Acuity Test, Preschool Randot Stereoacuity Test, Plusoptix Autorefractor
- Where
- Canada
- Volunteers
- 2,597 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Myopia, Refractive Errors
Community Intervention and Demonstration Area Construction
The objective of this intervention study was to understand the visual health status of nearly one million children and adolescents in ten provinces in China, and then to conduct intervention and evaluate the effect of…
- Trial name
- NCT05715424
- Testing
- Six interventions for children and adolescents
- Where
- China
- Volunteers
- 1,000,000 people, healthy volunteers welcome
- Sponsor
- Anhui Medical University