Clinical trials: Refractive Error - Myopia
Refractive Error
Evaluation of Deposits on Contact Lenses Worn Daily Wear
The purpose of this study was to measure front surface deposits on contact lenses when worn for ten hours.
- Trial name
- NCT00725153
- Testing
- Balafilcon A contact lenses (PureVision), Etafilcon A contact lenses (Acuvue2)
- Where
- United States
- Volunteers
- 55 people
- Sponsor
- Alcon Research
Myopia
Clinical Assessment of Two Daily Wear Monthly Replacement Soft Silicone Hydrogel Contact Lenses
The purpose of this study is to compare the clinical performance of TOTAL30 contact lenses with Biofinity contact lenses over 30 days of daily wear.
- Trial name
- NCT04980456
- Testing
- Lehfilcon A contact lenses, Comfilcon A contact lenses, CLEAR CARE
- Where
- 14 sites in United States
- Volunteers
- 257 people
- Sponsor
- Alcon Research
Ametropia, Myopia
Apioc Contact Lens Feasibility
This clinical trial will document the feasibility of the Apioc lens design by assessing which lens shape parameters yield successful on-eye-fit and movement of the Apioc contact lens design and evaluate the subjectively-reported…
- Conditions
- Ametropia, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT03688672
- Testing
- Apioc Contact Lens Design
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Lentechs, LLC
Refractive Error - Myopia
Does Undercorrection of Myopia Retard Myopia Progression Among Kindergarten Children?
The purpose of this study is to find out if undercorrection of myopia slow down the progression of myopia in kindergarten children.
- Trial name
- NCT00348166
- Testing
- cyclopentolate
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- KK Women's and Children's Hospital
Myopia, Child Myopia Progression
Photolithography Microstructure Myopia Management Lenses in Preventing and Controlling Myopia in Children and Adolescents
Evaluate the effectiveness of different lithographic microstructured myopia management lenses in controlling the progression of myopia in children and adolescents, as well as the safety and comfort of wearing them.
- Trial name
- NCT07514039
- Testing
- Myopia management lens
- Where
- China
- Volunteers
- 252 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
Progressive Myopia Treatment Evaluation for NaturalVue Multifocal Contact Lens Trial
This is a multi-center, randomized, double-masked clinical trial. All study devices are market approved/cleared in the localities where the study is conducted.
- Trial name
- PROTECT (NCT05159765)
- Testing
- Single vision contact lenses, Multifocal contact lenses
- Where
- 8 sites in United States, Canada and 2 more
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- Visioneering Technologies, Inc
Myopia, Myopia Progression
Children's Viewing Behavior
The aim of this study is to investigate the area of the spectacle lens in which a subject is viewing through regardless of task being performed.
- Conditions
- Myopia, Myopia Progression, Juvenile Myopia
- Trial name
- NCT07229365
- Testing
- Novel spectacle lens design, Spectacle lens designs
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Myopia, Astigmatism
PMCF Study on SMILE Treatment of Myopia With and Without Astigmatism
The primary objective of this PMCF investigation is to systematically collect safety and effectiveness data with the VISUMAX 800 laser in clinical daily routine SMILE use for the purpose of post market surveillance.
- Trial name
- NCT04884672
- Testing
- SMILE
- Where
- 5 sites in Denmark, Germany and 2 more
- Volunteers
- 237 people
- Sponsor
- Carl Zeiss Meditec AG
Presbyopia
A Prospective Study To Evaluate The Raindrop Near Vision Inlay In Presybopic or Pseudophakic Patients Treated With Mitomycin C Following Femtosecond Flap Creation.
The clinical objective of this study is to evaluate the Raindrop® Near Vision Inlay for the improvement of near vision in presbyopic or pseudophakic patients treated with low dose Mitomycin C immediately following femtosecond…
- Trial name
- NCT03101501
- Testing
- Mitomycin c, Raindrop Near Vision Inlay
- Where
- 3 sites in United States
- Volunteers
- 9 people
- Sponsor
- Key-Whitman Eye Center
Myopia
Efficacy of Topical Atropine Eye Drops for Control of Myopia Progression Among Children Attending Mansoura University Ophthalmic Center
This randomized controlled trial aims to evaluate the efficacy and safety of low-dose topical atropine sulphate (0.05%), a non-selective muscarinic antagonist, in slowing the progression of myopia and ocular axial elongation in…
- Trial name
- NCT07164092
- Testing
- Atropine 0.05% Eye drops
- Volunteers
- 45 people
- Sponsor
- Mansoura University
Cataract, Presbyopia
Objective and Subjective Outcomes of a Trifocal IOL in Eyes With Different AL
This prospective cohort study enrolled patients with implantation of a trifocal IOL. Only one eye of each patient was enrolled. Eyes were devided into three groups according the axial length (AL), including the short AL group…
- Conditions
- Cataract, Presbyopia, Lenses, Intraocular, Myopia
- Trial name
- NCT05431868
- Testing
- AT LISA tri 839MP (Carl Zeiss Meditec AG)
- Where
- China
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Myopia
Development of Bioluminescent Myopia Prevention and Control Instrument and Evaluation of Its Effect on Myopia
Based on the Tongren Myopia and Amblyopia Therapeutic Apparatus (a 650nm low-level red-light device) developed by the research team in the previous phase, the device was modified by replacing the light source with LED light.
- Trial name
- NCT07208617
- Testing
- RED-light device using LED light source, Control
- Where
- China
- Volunteers
- 206 people
- Sponsor
- Beijing Tongren Hospital
Myopia, Astigmatism
LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser vs AMO Visx Wavefront-Guided Excimer Laser
The purpose of the study is to compare the results of LASIK surgery when using Alcon Allegretto wavefront-guided excimer laser system compared to AMO Visx Custom wavefront-guided excimer laser system in patients with…
- Trial name
- LASIK (NCT01454843)
- Testing
- Wavefront-guided LASIK - Allegretto, Wavefront-guided LASIK - AMO
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Stanford University
Myopia, Hyperopia
DAILIES TOTAL1® Soft Contact Lenses - Post-Market Clinical Follow-up Study
The purpose of this study is to continuously assess the visual performance and safety of DAILIES TOTAL1 soft contact lenses in a real world setting and broader patient base through routine clinical practices.
- Conditions
- Myopia, Hyperopia, Presbyopia, Astigmatism
- Trial name
- NCT06483113
- Testing
- Delefilcon A spherical soft contact lenses, Delefilcon A toric soft contact lenses, Delefilcon A multifocal soft contact lenses
- Where
- 12 sites in United States
- Volunteers
- 192 people
- Sponsor
- Alcon Research
Myopia
A Controlled Evaluation of Optical Defocus Parameters on Transient Changes in Axial Length Using Kubota Glass
This study will assess the optimal performance characteristics of optical defocus on transient changes in axial length with Kubota Glass, using a randomized, double-masked, 5-treatment, 5-period crossover design with…
- Trial name
- NCT07686289
- Testing
- KG1, KG2, KG3
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Myopia
Defocus (DIMS) Spectacles Versus Ortho-K Lenses (OKL) for Slowing Myopia Progression in Children Aged 6-12 Years.
The goal of this non-inferiority randomized clinical trial is to compare the myopia control efficacy of Ortho-K lenses (OKL) and Defocus (DIMS) spectacles in myopic children aged 6-12 years.
- Trial name
- NISDO (NCT05134935)
- Testing
- Defocus Incorporated Multiple Segment (DIMS) Spectacles, Orthokerathology lenses (OKL)
- Where
- Denmark
- Volunteers
- 90 people
- Sponsor
- Vejle Hospital
Myopia, Prevention and Control
Effectiveness of Digital Defocus Vision Training With Low-Concentration Atropine on the Prevention and Control of Myopia in Children: A Clinical Study
Based on existing theories of myopia development and progression, our preliminary work has leveraged the features of virtual reality (VR) technology to digitally simulate myopic defocus signals through image-based emulation.
- Trial name
- NCT07724210
- Testing
- For the experimental group,Virtual reality-based digital defocus training combined with 0.02% atropine eye drops, For the control group, one drop of 0.02% atropine eye drops was instilled into each eye at bedtime daily, combined with full-time wear of fully corrected multi-zone positive optical defocus (DIMS) spe
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Myopia
Clinical Evaluation of a Myopia Control Lens in Slowing Myopia Progression (CSL)
This is a mono-centre, prospective, one-arm, unmask clinical trial to evaluate the effectiveness of test lens in slowing myopia progression with respect to axial length elongation compared to a single vision spectacle lens from…
- Trial name
- NCT05724186
- Testing
- Test myopia control lenses (CSL)
- Where
- Singapore
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia
Preservative-free Topical Anesthetics for Post-PRK Pain
The goal of this interventional comparative study is to assess the efficacy and safety of a novel regimen of preservative-free unit-dose topical anesthetics for controlling early postoperative pain following single-step…
- Trial name
- NCT05733741
- Testing
- Preservative-free Benoxinate hydrochloride 0.4% (Benoxidia unit-dose vials [UD], Orchidia pharmaceutical Ind., Egypt), Preservative-free Sodium hyaluronate 0.2% (Polyfresh unit-dose vials [UD], Orchidia pharmaceutical Ind., Egypt).
- Where
- Egypt
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Assiut University
Myopia
Long Term Effects of Multifocal Orthokeratology on Corneal and Choroidal Structures in Healthy Subjects With Myopia- A Pilot Study
Orthokeratology has the benefit for slowing down myopia progression and enabling unaided vision during the day. To investigate proposed possible changes of conventional and multifocal orthokeratology in the cornea and choroid…
- Trial name
- NCT02700295
- Testing
- Orthokeratology lens
- Where
- Austria
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
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