Clinical trials: Refractive Error
Myopia
The Contact Lens and Myopia Progression (CLAMP) Study
To examine the effects of rigid gas permeable contact lenses on the progression of myopia (nearsightedness) in children To determine what changes in the eyes cause certain eyes to progress in nearsightedness more slowly
- Trial name
- NCT00009529
- Where
- United States
- Sponsor
- National Eye Institute (NEI)
Myopia
Study of ACUVUE® ADVANCE® PLUS Contact Lenses.
The purpose of this study is to compare ACUVUE® ADVANCE® Plus contact lenses made prior to process qualification (prePQ) against the ACUVUE® ADVANCE® Plus lenses made after the process qualification (postPQ).
- Trial name
- NCT01244893
- Testing
- Acuvue Advance Plus prePQ, Acuvue Advance Plus postPQ
- Where
- 3 sites in United States
- Volunteers
- 44 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia, Astigmatism
Clinical Evaluation of Two Monthly Replacement Silicone Hydrogel Contact Lenses
The purpose of this study is to evaluate differences in the comfort at the end of the month between Air Optix® lenses versus Biofinity® lenses in habitual daily wear symptomatic soft contact lens wearers.
- Trial name
- NCT01629693
- Testing
- Lotrafilcon B contact lenses, Comfilcon A contact lenses
- Volunteers
- 398 people
- Sponsor
- Alcon Research
Myopia, Refractive Errors
School-based Myopia Control Trial for Children With Premyopia or Myopia
This is a prospective, school-based randomized controlled trial designed to evaluate auricular acupressure combined with defocus spectacle lenses for myopia control in primary school students with premyopia or myopia.
- Trial name
- SPARK (NCT07746778)
- Testing
- Defocus Spectacle Lenses, Auricular Acupressure
- Where
- China
- Volunteers
- 358 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
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.
Myopia
Increased Prevalence of Myopia in a Ophthalmologic Hospital in Goiânia - Goiás
The purpose of this study was to evaluate the increased prevalence of myopia among patients in different periods in an ophthalmologic hospital in Goiania.
- Trial name
- NCT02647411
- Volunteers
- 16,971 people
- Sponsor
- Instituto de Olhos de Goiania
Presbyopia
CLEAR CARE® PLUS for Presbyopic Contact Lens Wearers
The purpose of this study is to evaluate CLEAR CARE® PLUS (CCP) compared to non-HYDRAGLYDE® multi-purpose contact lens solutions in presbyopes currently wearing soft contact lenses and experiencing symptoms of dryness.
- Trial name
- NCT02965833
- Testing
- 3% hydrogen peroxide solution with HydraGlyde® Moisture Matrix, Habitual Multi-Purpose Contact Lens Solution, Habitual Contact Lenses
- Volunteers
- 126 people
- Sponsor
- Alcon, a Novartis Company
Cataract, Lens Opacities
PMCF Retrospective Study Outcomes of a Monofocal Toric Intraocular Lens
This is a monocentric retrospective, open-label clinical study in patients after unilateral or bilateral implantation of hydrophobic acrylic monofocal toric intraocular lens PODEYE TORIC and executed only with standard of care…
- Conditions
- Cataract, Lens Opacities, Astigmatism
- Trial name
- NCT05055076
- Testing
- PODEYE TORIC
- Where
- France
- Volunteers
- 105 people
- Sponsor
- Beaver-Visitec International, Inc.
Full Spectrum
A Self-controlled Study of the Effect of Partial Spectral Absence of Visible Light on the Pupil
Previous studies have shown that the spectrum of light influences myopia. LED lights with a partially absent light spectrum increase the risk of myopia progression compared to LEDs with a full spectrum, potentially mediated by…
- Trial name
- NCT06501131
- Testing
- full-spectrum light exposure, specific spectrum absence light exposure
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Fitting Evaluation of Hydrogel and Silicone Hydrogel Sphere Design Contact Lenses
The aim of this non-dispensing fitting study is to evaluate the short term lens fit, vision performance of three monthly replacement sphere lenses.
- Trial name
- NCT03098745
- Testing
- Omafilcon A, Somofilcon A, Omafilcon A - Proclear (PC)
- Where
- Mexico
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
BIOCLEAN MPS (Multi-Purpose Solution) VII in Combination With Biofinity Lens: A Two Week Crossover Study
Two week, Open Label, randomized, bilateral, crossover, 1 week of daily wear in each combination (lens / disinfecting cleaning system).
- Trial name
- NCT02537730
- Testing
- Bioclean MPS VII, Aosept Clearcare, comfilcon A
- Where
- 3 sites in Japan
- Volunteers
- 33 people
- Sponsor
- CooperVision, Inc.
Astigmatism, Ametropia
Optimization for Toric Contact Lenses
The aim of this study is to evaluate the agreement between subjective and objective toric lens prescriptions.
- Trial name
- NCT07557030
- Testing
- Lens 1 ( stenfilcon A ), Lens 2 ( comfilcon A )
- Where
- United States
- Volunteers
- 29 people
- Sponsor
- CooperVision International Limited (CVIL)
Myopia
Dispensing Evaluation of Printed Etafilcon A With Polyvinylpyrrolidone (PVP)
The purpose of this study is to evaluate the lens fit (mechanical and cosmetic lens fit) of the printed etafilcon A with polyvinylpyrrolidone (PVP).
- Trial name
- NCT01180777
- Testing
- etafilcon A (A), etafilcon A (B), etafilcon A (C)
- Where
- 6 sites in United States
- Volunteers
- 95 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Astigmatism, Cornea
Accuracy of Corneal Astigmatism in Different Region Modes
To analyze the difference between measured total corneal astigmatism and actual corneal astigmatism under different region modes and optimize the region setting.
- Trial name
- NCT03299530
- Testing
- patients with corneal astigmatism
- Where
- China
- Volunteers
- 70 people
- Sponsor
- Wenzhou Medical University
Presbyopia
Functional Assessment of ADL in Patients Who Underwent Bifocal and Trifocal Presbyopic Correction
Patients who underwent bilateral bifocal or trifocal lenses implantation for presbyopia correction with monofocal intraocular lenses implantation are supposed to have sufficient uncorrected vision capacity for activities of daily…
- Trial name
- NCT03021512
- Testing
- Phaco with Restor, Phaco with Panoptix
- Where
- Greece
- Volunteers
- 80 people
- Sponsor
- Democritus University of Thrace
Myopia, Progressive, Atropine Allergy
Eye Drops Study for Myopia Control in Schoolchildren
The myopia prevalence in schoolchildren is high in Taiwan. The myopia progression is fast in children and often associated high myopia in later life.
- Trial name
- NCT03402100
- Testing
- eye drops
- Where
- Taiwan
- Volunteers
- 150 people
- Sponsor
- Chang Gung Memorial Hospital
Myopia
Assessment of the Efficacy and Safety of a DYnaMic Peripheral DegradatiON Myopia Disorder Control in Myopic Children ״DYMOND Study״
The DYMOND study evaluates the safety and effectiveness of TrackSight™, a digital medical application designed to slow myopia (nearsightedness) progression in children during everyday screen use.
- Trial name
- DYMOND (NCT07390500)
- Testing
- TrackSight
- Where
- Israel
- Volunteers
- 150 people
- Sponsor
- NovaSight
Astigmatism
Orientation Characteristics of Daily Disposable Toric Contact Lenses
Brief summary: Approximately 30 soft toric contact lens adapted subjects will be enrolled in this feasibility, bilateral, randomized, double-masked (subject and investigator), repeated measures insertion study.
- Trial name
- NCT06069609
- Testing
- kalifilcon A Daily Disposable Toric, Acuvue Oasys 1-Day for Astigmatism
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Presbyopia
Post-Approval Study With the KAMRA Inlay
KAMRA inlay, to be unilaterally implanted into the cornea of a subject's non-dominant eye. The inlay is to be inserted into a stromal pocket created with a surgical femtosecond laser.
- Trial name
- NCT03173664
- Testing
- KAMRA Inlay
- Volunteers
- 529 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Corneal Astigmatism, Orientation
Construction of Computerized Intraoperative Keratometer and Experimental Study
To construct a computerized intraoperative keratometer to analyze the axis of corneal astigmatism accurately as well as rapidly by self-designed software during surgery.
- Trial name
- NCT01636167
- Testing
- computerized intraoperative keratomer
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Wenzhou Medical University
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