Clinical trials: Refraction Error
Presbyopia
Assessment of Three Basic Progressive Lens Designs
This clinical trial investigates the differences between three different progressive addition lens designs. It is a non-invasive double-masked randomized clinical investigation. For this study, 80 participants will be recruited.
- Trial name
- NCT05252871
- Testing
- Progressive Additional Lenses (PAL), pre calibrated and made of polymeric material with anti-reflection coating
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Western University of Health Sciences
Myopia
Discontinuation of Lens Wear in New Ortho-k Children (DOEE2)
This study aims at investigating the efficacy of myopic control using ortho-k in younger and older children.
- Trial name
- DOEE2 (NCT01236755)
- Testing
- single-vision glasses, ortho-k lenses
- Where
- China
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia
The Clinical Comparison of Senofilcon A and Stenfilcon A Contact Lenses
The objective of this study is to compare the clinical performance of senofilcon A lens with the stenfilcon A lens each for one week of daily disposable wear.
- Trial name
- NCT02643004
- Testing
- Senofilcon A, Stenfilcon A
- Where
- United Kingdom
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Astigmatism
The Clinical Study of Silicone Hydrogel Daily Disposable Stenfilcon A Toric Lens
The aim of this study is to evaluate the clinical performance of stenfilcon A toric lenses compared with etafilcon A toric lenses for astigmatism.
- Trial name
- NCT02801006
- Testing
- stenfilcon A, etafilcon A
- Where
- 2 sites in Japan
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Presbyopia, Refractive Errors
VisionApp - Refraction and Presbyopia
Recent Android mobile device technology is available which allows user-measured refractive error and reading add power. This technology could be quite useful to the clinical and research community.
- Trial name
- NCT07570602
- Testing
- VisionApp
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Indiana University
Astigmatism
Toric Contact Lens Digital Performance and Comfort Study
This study seeks to quantify digital visual performance and subjective visual acceptance of toric contact lenses as compared to spherical lenses in low to moderate astigmatic patients.
- Trial name
- NCT04772560
- Testing
- Precision1 for Astigmatism, Precision1 Sphere
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Kathryn Richdale
Astigmatism Bilateral
Evaluation of Wear Experience With Daily Disposable and Monthly Replacement Toric Contact Lenses
Comparison of wear experience with daily disposable and monthly replacement soft contact lenses in contact lens wearers who have astigmatism.
- Trial name
- NCT05580575
- Testing
- Daily disposable toric soft contact lens, Monthly replacement toric daily wear soft contact lens
- Where
- 3 sites in United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Refractive Ametropia, Astigmatism
1-Week Dispensing Evaluation of REVIVE™ Toric Soft Contact Lenses
Experienced soft contact lens wearing subjects were enrolled in this 1-week, post-market, bilateral, repeated measures, dispensing study.
- Trial name
- NCT06053736
- Testing
- REVIVE Toric Soft Contact Lenses
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Presbyopia
A Clinical Trial to Evaluate a Corneal Inlay for the Improvement of Near Vision in Presbyopic Patients
This study will be a prospective, multicenter clinical trial in which a total of 400 subjects will be enrolled. All subjects will be followed over a 36 month time frame with a maximum of 15 clinical sites participating.
- Trial name
- NCT01373580
- Testing
- The Raindrop Near Vision Inlay
- Where
- 11 sites in United States
- Volunteers
- 373 people, healthy volunteers welcome
- Sponsor
- ReVision Optics, Inc.
Myopia, Hyperopia
Evaluation of the Performance of Monthly Replacement Sphere Lens Designs in Habitual Soft Contact Lens Wearers
The objective of the study is to evaluate the clinical performance of two monthly silicone hydrogel contact lenses in habitual wearers of frequent replacement (FRP) lenses when worn for one month.
- Trial name
- NCT05114564
- Testing
- Lens A (comfilcon A lens), Lens B (lehfilcon A lens)
- Where
- 4 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Astigmatism, Presbyopia
Comparing Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism
The objective of the study was to compare the handling and performance of Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism.
- Trial name
- NCT04404725
- Testing
- comfilcon A, Samfilcon A
- Where
- 7 sites in United States, Canada
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Presbyopia
Safety and Effectiveness of the AcuFocus Corneal Inlay ACI7000PDT in Presbyopes
The purpose of this study is to determine if the AcuFocus Corneal Inlay ACI 7000PDT will provide an effective method of for the correction of presbyopia in patients who have normal distance vision but need correction such as…
- Trial name
- NCT01352442
- Testing
- AcuFocus Corneal Inlay ACI 7000PDT
- Where
- 11 sites in Australia, Austria and 8 more
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Myopia, Astigmatism
1-Week Dispensing Evaluation of Kalifilcon A Toric Contact Lenses Compared to Ultra for Astigmatism
This single-site, randomized, double-masked (participant and investigator), 2-way crossover, repeated-measures dispensing study evaluated the visual performance of kalifilcon A daily disposable toric (LD213001) contact lenses…
- Trial name
- NCT05320042
- Testing
- kalifilcon A daily disposable toric contact lenses, Ultra for Astigmatism (samfilcon A) contact lenses
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Ametropia
Clinical Characterization of Symptomatic Populations
This is an unmasked, non-randomized, single arm, stratified, dispensing investigation of symptomatic and asymptomatic subject populations.
- Trial name
- NCT03319212
- Testing
- senofilcon A contact lenses
- Where
- 2 sites in United States, Canada
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Presbyopia
A Clinical Trial of The VisAbility Micro Insert System for Presbyopic Patients
The purpose of this study is to evaluate the safety and effectiveness of the VisAbility Micro Insert System for the improvement of near visual acuity in presbyopic patients.
- Trial name
- NCT02374671
- Testing
- VisAbility Micro Insert
- Where
- 14 sites in United States
- Volunteers
- 365 people, healthy volunteers welcome
- Sponsor
- VisDura, Inc.
Myopia
A Clinical Evaluation of Two Contact Lenses Used With Three Care Systems
The objective of the study was to compare the clinical performance of the two contact lenses when used in combination with three care systems.
- Trial name
- NCT04195581
- Testing
- comfilcon A, fanfilcon A
- Where
- United Kingdom
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Presbyopia
Evaluate Efficacy and Safety of POS to Improve Distance-corrected Near Visual in Participants With Presbyopia
Safety and efficacy of POS in participants with presbyopia
- Trial name
- VEGA-3 (NCT06542497)
- Testing
- 0.75% phentolamine ophthalmic solution
- Where
- 39 sites in United States
- Volunteers
- 569 people, healthy volunteers welcome
- Sponsor
- Opus Genetics, Inc
Refractive Errors, Astigmatism
Study of a Hand-held Device Plus Mobile App Versus Standard Eye Care Devices in Measuring Refractive Error of the Eye
Single-center, open-label, prospective study in healthy volunteers desiring refraction for correction of visual acuity to compare a handheld device supported by a mobile application with the phoropter and autorefractor.
- Trial name
- NCT03929588
- Testing
- Hand-held device supported by a mobile application, Phoropter, Autorefractor
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Refractive Errors
Clinical and Refractive Outcomes After Contoura® Refractive Surgery Planned Using Phorcides Surgery Planning Software
The objective of the current study is to prospectively evaluate 3-month clinical outcomes from LASIK performed using the Phorcides surgical planning software with Contoura topography-guided ablation in both eyes of subjects with…
- Trial name
- NCT04495829
- Testing
- Phorcides Analytical Engine
- Where
- 5 sites in United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- American Corneal Consultants
Pain, Vision Nearsighted
Post Photorefractive Keratectomy (PRK) Use of an Eye Shield for Maintaining Vision and Mitigating Pain
The purpose of this research is to determine if an investigational thin shield over the cornea can safely and effectively reduce or eliminate pain following Post Photorefractive Keratectomy (PRK).
- Trial name
- Nexis-CS0032 (NCT01592643)
- Testing
- Eye Shield
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Stanford University