Clinical trials: Hyperopia,
Presbyopia
Clinical Performance of Two Frequent Replacement Silicone Hydrogel Multifocal Contact Lenses
The purpose of this study is to evaluate the on-eye multifocal clinical performance of investigational LID233309 contact lenses and Oasys multifocal (MF) contact lenses in a daily wear dispensing trial.
- Trial name
- NCT06469242
- Testing
- Serafilcon A multifocal contact lenses, Senofilcon A multifocal contact lenses, CLEAR CARE® Cleaning & Disinfecting Solution
- Where
- 8 sites in United States
- Volunteers
- 106 people
- Sponsor
- Alcon Research
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.
Refractive Errors, Myopia
Performance Assessment of a Modified Daily Disposable Contact Lens
The purpose of this study is to compare visual acuity between two daily disposable contact lenses.
- Conditions
- Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT03762668
- Testing
- Modified delefilcon A contact lenses, Delefilcon A contact lenses
- Where
- 5 sites in United States
- Volunteers
- 62 people
- Sponsor
- Alcon Research
Refractive Error, Myopia
Silicone Hydrogel Contact Lens Clinical and Comfort Benefits With a Multi-Purpose Disinfecting Solution
The purpose of this study was to compare lens comfort on Day 30 for Air Optix® lenses cared for with OPTI-FREE® PureMoist® (OFPM) Multi Purpose Disinfecting Solution (MPDS) compared to Acuvue® Oasys® lenses cared for with…
- Conditions
- Refractive Error, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01809197
- Testing
- Lotrafilcon B contact lenses, Senofilcon A contact lenses, OPTI-FREE PureMoist Multi-Purpose Disinfecting Solution (MPDS)
- Volunteers
- 387 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
Clinical Evaluation of Two Frequent Replacement Soft Spherical Contact Lenses
This was a single-blind (participant masked), interventional, prospective, direct refit, bilateral wear short-term fitting study.
- Trial name
- NCT05656885
- Testing
- Lens A, Lens B
- Where
- Spain
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia, Hyperopia
Subjective Comparison of Pre-Lens Tear Film Stability With Daily Disposable Contact Lenses
The purpose of this study was to compare three CE-marked daily disposable contact lenses for tear film stability as measured by pre-lens non-invasive keratograph break up time (PL NIK-BUT).
- Conditions
- Myopia, Hyperopia, Refractive Error
- Trial name
- NCT01839318
- Testing
- Nelfilcon A contact lenses, Omafilcon A contact lenses, Etafilcon A contact lenses
- Volunteers
- 30 people
- Sponsor
- Alcon Research
Refractive Errors, Myopia
Safety and Suitability of ICL for Correction of Refractive Errors Without the Use of Dispersive OVDs
The goal of this observational study is to test whether surgeries for lenses designed to be implanted in the eye to correct refractive error can be done without the need for using viscoelastic substances that are used routinely…
- Conditions
- Refractive Errors, Myopia, Myopic Astigmatism, Hypermetropia
- Trial name
- NCT06371079
- Testing
- phakic intraocular lens implantation traditional, phakic intraocular lens implantation reduced OVD
- Where
- Iraq
- Volunteers
- 448 people
- Sponsor
- Loay Abdulmutalib Almusawi
Refractive Errors, Myopia
Clinical Assessment of a HYDRAGLYDE® Regimen
The purpose of this study is to evaluate worn AIR OPTIX® plus HYDRAGLYDE® (AOHG) lenses cleaned and disinfected with HYDRAGLYDE® containing lens solutions compared to each of the control habitual silicone hydrogel (SiHy) lenses…
- Conditions
- Refractive Errors, Myopia, Hypermetropia
- Trial name
- NCT03026257
- Testing
- Lotrafilcon B contact lenses with added wetting agent, Samfilcon A contact lenses, POLYQUAD/ALDOX-preserved contact lens solution with added wetting agent
- Where
- 8 sites in United States, Canada and 1 more
- Volunteers
- 323 people
- Sponsor
- Alcon, a Novartis Company
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, Hyperopia
Comparative Evaluation of Corneal Staining With Balafilcon A Lenses and Two Multi-Purpose Solutions
A new multi-purpose solution (MPS)was clinically evaluated against Opti-Free RepleniSH MPS at specific time points over the course of four days. The study was conducted with PureVision lenses.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01024855
- Testing
- RevitaLens OcuTec MPS (Investigational MPS) and Opti-Free RepleniSH MPS (control)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Hyperopia, Myopia
A Clinical Comparison of Two Soft Contact Lenses (C24-755)
The aim of this study is to compare the short-term clinical performance of two soft contact lenses.
- Trial name
- NCT06758076
- Testing
- Lens 1 (ocufilcon D), Lens 2 (somofilcon A)
- Where
- United Kingdom
- Volunteers
- 52 people
- Sponsor
- CooperVision, Inc.
Ametropia, Myopia
Clinical Performance Evaluation of Two Frequent Replacement Silicone Hydrogel Toric Contact Lenses
The primary objective of this study is to evaluate the axis orientation of LID226397 toric contact lenses.
- Conditions
- Ametropia, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT05959200
- Testing
- Serafilcon A toric contact lenses, Senofilcon A toric contact lenses, CLEAR CARE
- Where
- 7 sites in United States
- Volunteers
- 92 people
- Sponsor
- Alcon Research
Myopia, Astigmatism
Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Soft Contact Lens Wearers
The purpose of this study is demonstrate substantial equivalence of an investigational contact lens disinfecting solution to a commercially available contact lens solution in silicone hydrogel and soft contact lens wearers.
- Conditions
- Myopia, Astigmatism, Hyperopia, Refractive Error
- Trial name
- NCT01912768
- Testing
- FID 120947A contact lens disinfecting solution, renu fresh multi-purpose solution, Soft contact lenses
- Volunteers
- 362 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
A Clinical Comparison of Two Soft Contact Lenses
The study objective was to gather short-term clinical performance data for two soft contact lenses.
- Trial name
- NCT05741450
- Testing
- Lens 1 (monthly replacement), Lens 2 (daily disposable)
- Where
- United Kingdom
- Volunteers
- 45 people
- Sponsor
- CooperVision, Inc.
Hyperopia, Astigmatism
A Study to Evaluate the Safety and Effectiveness of the Technols 217z Zyoptix System for Hyperopia
A study to demonstrate the safety and effectiveness of wavefront laser refractive surgery treatments for hyperopia and astigmatism.
- Trial name
- NCT00348205
- Testing
- Technolas 217z Zyoptix Laser
- Where
- United States
- Volunteers
- 80 people
- Sponsor
- Bausch & Lomb Incorporated
Refractive Error
WaveLight® Refractive Myopic Study
The purpose of this study is to evaluate outcomes of subjects undergoing myopic surgery using the WaveLight® Refractive Suite (Excimer EX500 and Femtosecond FS200 lasers).
- Trial name
- NCT01941498
- Testing
- Wavelight® Refractive Suite, LASIK surgery
- Volunteers
- 104 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
One-month Clinical Evaluation of Oté Sensation Multi-Purpose Solution Care System
The purpose of this study is to evaluate the clinical performance of the contact lens care product Oté Sensation in a representative population of soft contact lens wearers.
- Trial name
- NCT03278223
- Testing
- Test solution, Control solution
- Where
- 11 sites in United States, United Kingdom
- Volunteers
- 194 people, healthy volunteers welcome
- Sponsor
- OTE North America
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
Refractive Errors, Myopia
Clinical Evaluation of a Daily Wear Silicone Hydrogel Lens
The purpose of this clinical study is to assess the safety and performance of an investigational soft contact lens compared to a commercially available soft contact lens when worn in a daily wear modality with frequent…
- Conditions
- Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT04207749
- Testing
- LID015385 contact lenses, Comfilcon A contact lenses, CLEAR CARE
- Where
- 18 sites in United States
- Volunteers
- 249 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
Comparing Low-cost Handheld Autorefractors - a Practical Approach to Measuring Refraction in Low Resource Settings
Study compares four portable vision measurement and eye-imaging technologies in terms of accuracy and time and ease of use with older adult (ages 40-100) participants in a developing-country setting (India).
- Trial name
- NCT03456245
- Testing
- Vision device validation
- Volunteers
- 205 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)