Clinical trials: Lenses
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
Glaucoma, Cataract
Anterior Lens Capsule as a Spacer in the Deep Sclerectomy _ Phacoemulsification
In this randomized clinical trial, patients with concomitant glaucoma and cataract candidate for non-penetrating deep sclerectomy (NPDS) and phacoemulsification (PE) and subtenon mitomycin injection will be enrolled.
- Trial name
- NCT05906212
- Testing
- Non-penetrating deep sclerectomy and phacoemulsification and autotransplantation of anterior lens capsule, Non-penetrating deep sclerectomy and phacoemulsification
- Where
- Iran
- Volunteers
- 66 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
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
Cataract, Astigmatism
Toric Intraocular Lens Following Cataract Surgery
The objective of this clinical trial is to evaluate the safety and effectiveness of the Bausch + Lomb Toric Accommodating Posterior Chamber Silicone Intraocular Lens used to provide near, intermediate, and distance vision and a…
- Trial name
- NCT01140477
- Testing
- Toric Accommodating Lens, Accommodating Lens
- Where
- United States
- Volunteers
- 229 people
- Sponsor
- Bausch & Lomb Incorporated
Intraocular Lens
Comparison of Two Different Methods for Calculating Intraocular Lens Tilt and Decentration
Agreement and Reproducibility of Intraocular Lens Tilt and Decentration Measurements: A Comparison between CASIA2 and CILT
- Trial name
- NCT07025707
- Where
- Austria
- Volunteers
- 15 people
- Sponsor
- St John of God Hospital, Vienna
Refractive Errors, Astigmatism
Clinical Assessment of a Daily Wear Monthly Replacement Silicone Hydrogel Toric Contact Lens
The purpose of this clinical study is to assess the clinical performance of an investigational toric soft contact lens compared to a commercially available toric contact lens in a crossover dispense trial when worn in a daily…
- Trial name
- NCT05211739
- Testing
- Lehfilcon A toric contact lenses, Comfilcon A toric contact lenses, CLEAR CARE
- Where
- 7 sites in United States
- Volunteers
- 76 people
- Sponsor
- Alcon Research
Stigma, Social, Child Abuse
Reducing Self-Stigma Among Individuals with History of Childhood Maltreatment: a Cross-Cultural Lens
Individuals who report experiencing any kind of abuse during childhood report shame and self-blame, often leading to self-stigma and a reluctance to reveal their experiences and seek help.
- Conditions
- Stigma, Social, Child Abuse, Child Neglect, Help-Seeking Behavior
- Trial name
- NCT06159075
- Testing
- Video
- Where
- United States
- Volunteers
- 964 people, healthy volunteers welcome
- Sponsor
- Research Foundation for Mental Hygiene, Inc.
Macular Holes, Visual Acuity Gain
Impact of C3F8 or SF6 Use and Length of Face-down Positioning (7 vs 14 Days Respectively) in Macular Hole Surgery
The primary purpose of the study was to compare the macular hole closure and visual acuity gain following vitrectomy using SF6 gas tamponade with 7 days of face-down positioning versus C3F8 gas tamponade with 14 days of face-down…
- Conditions
- Macular Holes, Visual Acuity Gain, Cataract, Complications
- Trial name
- NCT02073266
- Testing
- Macular hole surgery using a 25 G pars plana vitrectomy, ILM peeling, fluid-air exchange followed by air-gas exchange with SF6 or C3F8.
- Where
- Canada
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- CHU de Quebec-Universite Laval
HIV Infections, Opioid Use Disorder
NOTRE: Optimizing Long-Acting Pre-Exposure Prophylaxis and Medications for Opioid Use Disorder Interventions in Carceral Settings
The investigators plan to conduct an R61/33 hybrid type 2 implementation-effectiveness trial that includes 1) a one-year exploratory R61 phase that will enable the development of the intervention protocol needed for the R33 trial…
- Conditions
- HIV Infections, Opioid Use Disorder, Incarceration; Lens
- Trial name
- NOTRE (NCT06854029)
- Testing
- Cabotegravir Injection, Cabotegravir Pill, Buprenorphine injection
- Where
- United States
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- Duke University
Cataract
What is the Efficiency When Comparing Active Sentry at Low IOP vs Ozil at High IOP?
The objective is to assess the efficiency of the Active Sentry handpiece at low intraocular pressure (IOP) compared with the Ozil at high IOP.
- Trial name
- NCT05868772
- Testing
- Active Sentry Handpiece, Ozil Handpiece
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Cataract and Laser Institute of Southern Oregon
Cataract, High Myopia
Visual Outcomes of an Enhanced Monofocal Intraocular Lens Targeted for Monovision in Highly Myopic Eyes: a Randomized Controlled Trial
The goal of this clinical trial is to evaluate whether an enhanced monofocal intraocular lens targeted for monovision can improve visual outcomes in patients with cataract and high myopia (axial length ≥ 26 mm).
- Trial name
- NCT07168109
- Testing
- Enhanced monofocal intraocular lens implantation (monovision strategy), Enhanced monofocal intraocular lens implantation (bilateral myopia strategy)
- Volunteers
- 66 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Cataract, Aphakic Eye
Comparative Study of the Tomey OA-2000, Tomey CASIA2, and the LenStar LS900
This is a prospective comparative study that will be conducted at one clinical site in the United States, in which subjects who sign an informed consent form and fulfil all inclusion and exclusion criteria, will have OCT scans…
- Conditions
- Cataract, Aphakic Eye, Pseudophakia
- Trial name
- NCT06065072
- Testing
- Optical measurement
- Where
- United States
- Volunteers
- 167 people, healthy volunteers welcome
- Sponsor
- Tomey Corporation
Cataract
DisCoVisc Versus DuoVisc, Healon5 and AmVisc Plus
A comparison of the ability of DisCoVisc to that of other ophthalmic viscosurgical devices (OVDs) (DuoVisc, Healon5 or Amvisc PLUS) regarding endothelial protection and anterior chamber space maintenance during non-eventful…
- Trial name
- NCT00712244
- Testing
- DisCoVisc, DuoVisc, Healon5
- Where
- United States
- Volunteers
- 112 people
- Sponsor
- Alcon Research
Presbyopia
Comparison of a Multifocal Contact Lens to a Traditional Multifocal Contact Lens
The purpose of the trial is to compare the performance of two multifocal contact lens systems/products in established presbyopic subjects.
- Trial name
- NCT00886119
- Testing
- Lotrafilcon B multifocal contact lens, Omafilcon A multifocal contact lens
- Volunteers
- 48 people
- Sponsor
- CIBA VISION
Cataract
Clobetasol Propionate Ophthalmic Nanoemulsion 0.05% for the Treatment of Inflammation and Pain Associated With Cataract Surgery (CLOSE-2)
Cataract surgery is one of the most common surgical procedures performed worldwide. In fact, in 2017, 3.8 million cataracts procedures were performed in the US.
- Trial name
- CLOSE-2 (NCT04249076)
- Testing
- Clobetasol Propionate, Vehicle
- Where
- 18 sites in United States
- Volunteers
- 215 people
- Sponsor
- Salvat
Cataract
Visual Acuity Outcome Differences Between the Alcon Vivity Toric IOL and RxSight LAL+
Phase 1 will be ambispective, multi-site, single arm study in age-related cataract patients with regular astigmatism, who were bilaterally treated with the LAL+ IOLs Phase 2 will be a prospective, randomized, unmasked…
- Trial name
- NCT06574646
- Testing
- LAL+, Clareon Vivity Toric IOL
- Where
- United States
- Volunteers
- 250 people
- Sponsor
- The Eye Associates
Refractive Error
Lubricity Post-Wear - Competitive Lenses Pilot
The purpose of this study is to measure the coefficient of friction of three silicone hydrogel, daily disposable contact lenses after 16 hours of wear.
- Trial name
- NCT02402127
- Testing
- Narafilcon A contact lenses, Stenfilcon A contact lenses, Somofilcon A contact lenses
- Volunteers
- 24 people
- Sponsor
- Alcon Research
Sedation, Cataract
Comparison of Two Sedation Versus Placebo Techniques During Cataract Surgery Under Local Anesthesia
Check the sedation conditions during topic cataract surgery
- Trial name
- NCT04149340
- Testing
- Cataract surgery
- Where
- Belgium
- Volunteers
- 300 people
- Sponsor
- University of Liege
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
Presbyopia
Refitting Multifocal Contact Lens Wearers With a Different Multifocal Contact Lens
The purpose of this study was to compare ease of handling and vision acuity of two multifocal contact lenses to correct presbyopia that are currently CE marked and on the UK market.
- Trial name
- NCT06328660
- Testing
- Lens 1, Lens 2
- Where
- United Kingdom
- Volunteers
- 66 people
- Sponsor
- CooperVision International Limited (CVIL)
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.