Clinical trials: Refractive Error Correction
Hyperopia
Safety and Effectiveness of Wavefront-Guided LASIK Correction of Hyperopic Refractive Errors
Demonstrate that wavefront-guided LASIK using measurements from the iDesign System is safe and effective for the treatment of Hyperopia.
- Trial name
- NCT01675479
- Testing
- LASIK correction of hyperopic refractive errors
- Where
- 9 sites in United States
- Volunteers
- 167 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia
Safety and Effectiveness of Wavefront-Guided LASIK Corrections of Myopic Refractive Errors
The purpose of this clinical trial is to demonstrate that wavefront-guided LASIK is safe and effective for the correction of myopic refractive errors.
- Trial name
- NCT01663363
- Testing
- LASIK correction of myopic refractive errors
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia, Astigmatism
Contralateral Comparison of Three Excimer Laser Systems in Performing LASIK
The purpose of this study is to compare LASIK outcomes using the WaveLight ALLEGRETTO WAVE™ wavefront guided or optimized excimer laser treatment with the AMO/VISX CustomVue™ and the LADARVision 4000 excimer laser treatment.
- Trial name
- WLCVLV-001 (NCT00821236)
- Testing
- Excimer Laser, AMO/VISX CustomVue™, LADARVision 4000 excimer laser
- Where
- 2 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Durrie Vision
Correction of Refraction Error, Attenuation of Bright Light
Contact Lenses With New UV-blocker Manufactured With Different Techniques
This study is a randomized, 4-visit, double-masked, 2x3 bilateral crossover, dispensing trial. The study lenses will be worn as daily wear (DW) for a period of two weeks each with one of the study lenses being worn twice.
- Trial name
- NCT03475875
- Testing
- senofilcon A TEST Lens, senofilcon A CONTROL Lens
- Where
- 5 sites in United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Astigmatism
Comparison of Cross-cylinder and Conventional Photorefractive Keratectomy(PRK) in Correcting Medium-high Astigmatism
The purpose of this study is to determine whether cross-cylinder approach is more effective than routine method in laser correction of astigmatism.
- Trial name
- PRK (NCT00663923)
- Testing
- photorefractive keratectomy (PRK)
- Where
- Iran
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Tabriz University
Refractive Error Correction
Clinical Evaluation of Etafilcon A Contact Lenses Using a Novel Molding Process
This study is a multi-site, group sequential, adaptive, randomized, double-masked, 2×2 crossover design, 1-week dispensing study.
- Trial name
- NCT03605303
- Testing
- Test/Control, Control/Test
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Hyperopia
Hyperopia Correction Using the NTK Optimal Keratoplasty (Opti-K) System
The purpose of this U.S. Clinical Trial on treatment of sighted eyes is to investigate the safety and effectiveness of optimal keratoplasty (Opti-K™) treatments for hyperopia correction using the NTK Enterprises (NTK) Opti-K…
- Trial name
- NCT01028937
- Testing
- Optimal Keratoplasty
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- NTK Enterprises, Inc.
Myopia
Evaluating NeuroVision's Neural Vision Correction (NVC) Myopia Treatment
The purpose of the present study is to carry out a trial to evaluate the clinical efficacy of the NeuroVision Low Myopia Treatment. The specific questions to be answered are: 1.
- Trial name
- NCT00469612
- Testing
- NeuroVision's NVC treatment for Low Myopia
- Where
- United States
- Volunteers
- 2 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Myopia
Use of the VisuMax™ Femtosecond Laser
The objective of this clinical trial is to evaluate the safety and effectiveness of the Carl Zeiss Meditec VisuMax™ Femtosecond Laser lenticule removal procedure for the reduction or elimination of myopia from ≥ -1.00 D to ≤…
- Trial name
- NCT01638390
- Testing
- Treatment with the VisuMax™ Femtosecond Laser
- Where
- 5 sites in United States
- Volunteers
- 357 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Astigmatism
Safety and Effectiveness of Wavefront-guided LASIK for the Correction of Mixed Astigmatism
To demonstrate that wavefront-guided LASIK with measurements from iDesign is safe and effective in the treatment of mixed astigmatism.
- Trial name
- NCT01675492
- Testing
- LASIK
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia, Refractive Errors
VisuMax Femtosecond Laser Small Incision Lenticule Extraction for the Correction of High Myopia
The purpose of this study is to validate the safety and effectiveness of treating myopia (short-sightedness) higher than -10D using small incision lenticule extraction (SMILE) with the VisuMax femtosecond laser.
- Trial name
- NCT02528123
- Testing
- Small incision lenticule extraction, Tobramycin and dexamethasone, Ofloxacin
- Where
- United Kingdom
- Volunteers
- 114 people, healthy volunteers welcome
- Sponsor
- London Vision Clinic
Myopia, Astigmatism
New Treatment Algorithm to Reduce Spherical Aberration After LASIK Correction for Myopia
The purpose of this clinical trial is to demonstrate that treatments generated by an investigational algorithm reduces spherical aberration compared to currently available iDesign treatments.
- Trial name
- NCT01988415
- Testing
- VSS-Rx1 OPM vs Commercial iDesign Treatment
- Where
- Colombia
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Hyperopia, Farsightedness
Correction of Farsightedness in Children Study
The Correction of Hyperopia In Children Study (CHICS) is a placebo-controlled, randomized, masked investigation of the effect of spectacle correction for moderate amounts of hyperopia on visual function, attention, and reading…
- Trial name
- CHICS (NCT00472212)
- Testing
- Spectacles, Control
- Where
- 4 sites in United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Ohio State University