Clinical trials: Refractive Ametropia
Refractive Ametropia
Dispensing Evaluation of Subjective Comfort, Vision, and Handling of a New Lens Compared to a Marketed Lens
To evaluate and compare the performance of a new contact lens to a marketed contact lens.
- Trial name
- NCT01484054
- Testing
- etafilcon A with print and PVP for dark eyes (EAPVPDE), etafilcon A control lens (EADE)
- Where
- 6 sites in United States
- Volunteers
- 103 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ametropia
Clinical Evaluation of HPT Treated Rigid Contact Lenses Made From Hexafocon A
This will be an up to six months, subject-masked, contralateral, parallel-group, randomised, daily wear study. All subjects will wear the Test lens in one eye and the Control lens in the other eye.
- Trial name
- NCT04525170
- Testing
- HPT treatment, untreated
- Where
- 2 sites in Germany
- Volunteers
- healthy volunteers welcome
- Sponsor
- Contamac Ltd
Presbyopia, Ametropia
Clinical Trial With Artiflex Presbyopic (Artiplus)
The purpose of this clinical trial is to evaluate the effectiveness and safety of the multifocal Artiflex Presbyopic (Artiplus) intraocular lens.
- Conditions
- Presbyopia, Ametropia, Refractive Errors, Myopia
- Trial name
- NCT04632784
- Testing
- Artiflex Presbyopic (Artiplus) implantation
- Where
- 7 sites in South Korea, Spain
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Ophtec BV
Ametropia
Evaluation of Investigational (Frequent Replacement) FRP Lens for Daily Wear
The purpose of the study is to compare the investigational contact lens to a marketed contact lens. The study results were not used for design validation of investigational contact lens,
- Trial name
- NCT02362724
- Testing
- Sapphire, Pearl
- Where
- 6 sites in United States
- Volunteers
- 89 people
- Sponsor
- CooperVision, Inc.
Ametropia
Optimization of a Photoretinoscopy Method for Determining the Objective Refraction of Children With a Smartphone/add-on Device in India
The objective is to compare the refractive parameters of the photorefraction prototype device without cycloplegia with the refractive parameters of reference device, an autorefractometer with and without cycloplegia.
- Trial name
- NCT06524115
- Testing
- Comparator device, Closed-field autorefractometer without cycloplegia, Distance visual acuity check using objective refraction without cycloplegia, Comparator device, Closed-field autorefractometer with cycloplegia
- Where
- India
- Volunteers
- 122 people, healthy volunteers welcome
- Sponsor
- Essilor International
Ametropia
The Effects of Contact Lenses With Experimental Dye on Visual Function
This is a single-site, two-visit, contralateral, non-dispensing, randomized, controlled and subject-masked study to measure potential benefits of the new UV blocker.
- Trial name
- NCT03556579
- Testing
- senofilcon A with new UV blocker, senofilcon A
- Where
- United States
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ametropia
Safety and Efficacy of a New Transepithelial Photorefractive Keratectomy Treatment
This is a prospective, comparative, randomized, controlled, single-blind, single-surgeon, single-center PMCF clinical study whereby participants undergoing refractive surgery for correction of ametropia will receive a…
- Trial name
- NCT04698174
- Testing
- Transepithelial Photorefractive keratectomy (tPRK) without laser polishing, Transepithelial Photorefractive keratectomy (tPRK) with laser polishing, Standard Photorefractive keratectomy (PRK)
- Where
- Philippines
- Volunteers
- 39 people
- Sponsor
- Bausch & Lomb Incorporated
Ametropia
Performance of Toric Hydrogel Lenses Following A Refit With Toric Silicone Hydrogel Lenses for 1 Month
The aim of this prospective study is to evaluate the clinical performance of habitual wearers of methafilcon A toric lenses after a refit with fanfilcon A toric lenses for 1-month of daily wear.
- Trial name
- NCT03835221
- Testing
- methafilcon A toric contact lenses, fanfilcon A toric contact lenses
- Where
- Mexico
- Volunteers
- 43 people
- Sponsor
- CooperVision, Inc.
Refractive Errors, Ametropia
Clinical Performance of Two Daily Disposable Toric Soft Contact Lenses
The purpose of this study is to compare the clinical performance of PRECISION1™ for Astigmatism (P1fA) contact lenses with 1-DAY ACUVUE MOIST® for ASTIGMATISM (AMfA) contact lenses.
- Conditions
- Refractive Errors, Ametropia, Astigmatism
- Trial name
- NCT04908488
- Testing
- Verofilcon A toric contact lenses, Etafilcon A toric contact lenses
- Where
- 8 sites in United States
- Volunteers
- 115 people
- Sponsor
- Alcon Research
Ametropia
Clinical Evaluation of Two Daily Disposable Lenses in Sphere Design
This was a single-blind, interventional, prospective, direct refit, bilateral wear, fixed-sequence crossover study.
- Trial name
- NCT05516082
- Testing
- Lens A, Lens B
- Where
- Mexico
- Volunteers
- 41 people
- Sponsor
- CooperVision, Inc.
Myopia, Amblyopia
Myopia Control With Three Lever Irradiance of PBM Therapy in Children and Adults
Photobiomodulation therapy, that is, Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of…
- Conditions
- Myopia, Amblyopia, Refractive Error - Myopia Axial, Ametropia
- Trial name
- MCPT (NCT05957458)
- Testing
- Airdoc device of red light for Myopia
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Ametropia
A Clinical Study of the Comfilcon A Asphere Soft Contact Lens in Users of Digital Devices
The aim of this work is to investigate the clinical performance and subjective acceptance of the comfilcon A asphere contact lens when compared to single-vision spectacles in subjects who have never worn contact lenses and who…
- Trial name
- NCT04067050
- Testing
- comfilcon A asphere, Spectacles
- Where
- United Kingdom
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
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
Refractive Errors, Ametropia
Clinical Comparison of Two Daily Wear Frequent Replacement Silicone Hydrogel Soft Contact Lenses
The primary objective of this study is to evaluate the overall performance of an investigational silicone hydrogel lens when compared to ACUVUE OASYS® with HYDRACLEAR® PLUS (AOHP).
- Trial name
- NCT04532099
- Testing
- Lehfilcon A contact lenses, Senofilcon A contact lenses, Comfilcon A contact lenses
- Where
- 4 sites in United States
- Volunteers
- 132 people
- Sponsor
- Alcon Research
Myopia, Ametropia
Clinical Evaluation of the Safety and Efficacy of a New Multifocal Contact Lens
The purpose of this study was to demonstrate substantial equivalence of the new DAILIES® AquaComfort Plus® Multifocal (DACP MF) contact lens to the commercially available Focus® DAILIES® Progressives (FDP) contact lens.
- Conditions
- Myopia, Ametropia, Presbyopia, Refractive Error
- Trial name
- NCT01797783
- Testing
- Nelfilcon A multifocal contact lens with comfort additive, Nelfilcon A multifocal contact lens
- Volunteers
- 83 people
- Sponsor
- Alcon Research
Astigmatism, Presbyopia
North American Comfilcon A Clinical Study
The main objective of this study is to demonstrate acceptable safety and effectiveness (performance) of comfilcon A Sphere, Toric, Multifocal, Toric Multifocal and Energys lenses, when used in the general population.
- Conditions
- Astigmatism, Presbyopia, Ametropia
- Trial name
- NCT06902584
- Testing
- comfilcon A Sphere lens, comfilcon A Toric lens, comfilcon A Multifocal lens
- Where
- 4 sites in United States
- Volunteers
- 182 people
- Sponsor
- CooperVision International Limited (CVIL)
Ametropia
Optimization of a Photoretinoscopy Method for Determining the Objective Refraction of Children
The objective is to compare the refractive parameters of the photorefraction prototype device without cycloplegia with the refractive parameters of reference device, an autorefractometer with and without cycloplegia.
- Trial name
- NCT06295536
- Testing
- Comparator device, Closed-field autorefractometer
- Where
- Hong Kong
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Essilor International
Ametropia
Clinical Evaluation of HPT Treated Rigid Contact Lenses Made From Roflufocon D
This will be an up to six months, subject-masked, contralateral, parallel-group, randomised, daily wear study. All subjects will wear the Test lens in one eye and the Control lens in the other eye.
- Trial name
- NCT02553681
- Testing
- roflufocon D contact lenses, RGP contact lenses made from roflufocon D
- Where
- Germany
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Contamac Ltd
Refractive Ametropia
Evaluation of the Performance of Two Contact Lenses Compared to a Marketed Lens
This study will serve to evaluate and compare the performance of two new lenses to a marketed lens.
- Trial name
- NCT01484028
- Testing
- etafilcon A control lens (1DM), etafilcon A with print and PVP for light eyes (EALE), etafilcon A with print and PVP for dark eyes (EADE)
- Where
- 15 sites in United States
- Volunteers
- 275 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ametropia
Safety and Acceptability of Using a Rewetting Drop With Contact Lens Wear
Testing the Safety and Acceptability of Using a Rewetting Drop with Contact Lenses
- Trial name
- NCT00691197
- Testing
- Carboxymethylcellulose sodium and Glycerin, Carboxymethylcellulose sodium
- Where
- United States
- Volunteers
- 246 people, healthy volunteers welcome
- Sponsor
- Allergan