Clinical trials: Lenses
Visual Acuity
Evaluation of Approved Contact Lenses (CR-6657)
This is a prospective, multi-site, bilateral, 2-week dispensing, randomized, controlled, single-masked (subjects), 2x2 crossover study to evaluate visual acuity.
- Trial name
- NCT07819305
- Testing
- Test (Senofilcon A), Control (Serafilcon A)
- Where
- 8 sites in United States
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Hydration, Cataract Surgery
Posterior Flap Hydration of Clear Corneal Incisions in Cataract Surgery: Influence on Corneal Wound Tightness and Architecture
Sutureless clear corneal incision (CCI) is the most commonly used technique for creating an entrance wound in cataract surgery. Corneal incision hydration enhances wound tightness and reduces postoperative fluid suction from the…
- Trial name
- CCI hydration (NCT07581366)
- Testing
- Patient with visible central wound gap of the CCI
- Where
- Czechia
- Volunteers
- 53 people
- Sponsor
- University Hospital Pilsen
Myopia
Discontinuation of Orthokeratology on Eyeball Elongation in Myopic Children
The primary aim of this study is to compare eyeball elongation in existing ortho-k subjects who stop the treatment with subjects who continue ortho-k lens wear and control subjects wearing single-vision glasses.
- Trial name
- DOEE1 (NCT01236742)
- Testing
- ortho-k lenses, single-vision glasses
- Where
- China
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Astigmatism
Comparison of Senofilcon A Toric Lenses to Balafilcon A Toric Lenses Over Extended Wear Period
To evaluate two toric contact lenses on the ocular physiology of existing contact lens wearers when used in an extended wear modality of days/six nights.
- Trial name
- NCT00762502
- Testing
- senofilcon A toric contact lens, balafilcon A toric contact lens
- Where
- 8 sites in United States, Australia
- Volunteers
- 112 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ocular Surface Disease, Irregular Astigmatism
Evaluation of the Safety and Efficacy of Rigid Breathable Scleral Contact Lenses for the Correction of Ametropia
To evaluate the short-term efficacy and safety of scleral contact lens in the clinical treatment of patients with irregular astigmatism after corneal transplantation by analyzing ocular parameters and ocular surface conditions of…
- Conditions
- Ocular Surface Disease, Irregular Astigmatism, Contact Lens Complication, Corneal Astigmatism
- Trial name
- NCT06256770
- Where
- China
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Fuchs' Endothelial Dystrophy, Cataract
Netarsudil Use After Descemetorhexis Without Endothelial Keratoplasty
Primary aim of the study is to determine whether a rho kinase inhibitor, Netarsudil, can speed corneal clearance after DWEK. Secondary aim of the study is to investigate whether patient factors, such as baseline age, pachymetry…
- Trial name
- NCT04057053
- Testing
- Netarsudil 0.02% Ophthalmic Solution
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
Cataract
Visual Quality of Cataract Patients with High Myopia After Implantation of Different Intraocular Lenses
This prospective study aims to compare the visual outcomes following the implantation of two different types of multifocal intraocular lenses (IOLs) in highly myopic patients.
- Trial name
- NCT06892470
- Testing
- No intervention
- Where
- China
- Volunteers
- 62 people
- Sponsor
- Wenzhou Medical University
Cataract, Dry Eye
Clinical Evaluation of Reproducibility of Keratometric Measurements and Influencing Factors in Cataract Patients
The investigational device is an approved biometry device to perform biometric measurements preoperatively to calculate the needed IOL power. First, two native measurements at the IOL Master will be performed.
- Trial name
- KerSty (NCT04196621)
- Testing
- High viscous artificial tears, Low viscous artificial tears
- Where
- Austria
- Volunteers
- 80 people
- Sponsor
- Medical University of Vienna
Dislocated Lens, Pars Plana Vitrectomy
Effectiveness and Safety of 25-Gauge Needle-Assisted Phacoemulsification of Dislocated Intravitreal Lens Nucleus
The goal of this observational study is to learn about the effects of 25-gauge (G) needle-assisted phacoemulsification to remove dislocated intravitreal lens nuclei.
- Conditions
- Dislocated Lens, Pars Plana Vitrectomy, Phacoemulsification, Needle
- Trial name
- NCT06709378
- Where
- China
- Volunteers
- 9 people
- Sponsor
- Changzhou No.2 People's Hospital
Cataract, Pseudophakia
Wavefront Analisys and Contrast Sensitivity of Spherical and Aspherical Intraocular Lenses
Purpose:To compare visual performance, total and high order wavefront aberrations (coma, spherical aberration and other terms) and contrast sensitivity in eyes implanted with one monofocal aspheric intraocular lens (IOL) and two…
- Trial name
- NCT00347243
- Testing
- phacoemulsification (cataract surgery)
- Where
- Brazil
- Volunteers
- healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
Skin Quality
Laser Treatment to Improve Skin Quality
To assess the efficacy of a 1064nm picosecond laser (PicoWay; Candela; Marlborough, MA) with diffractive lens array and a picosecond 755nm laser (PicoSure®; Cynosure®; Westford, MA) with diffractive lens array in subjects for the…
- Trial name
- NCT05595525
- Testing
- 1064NM pico Laser, 755NM pico Laser
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Goldman, Butterwick, Fitzpatrick and Groff
Healthy, Healthy Participants
Do Daily Disposable Soft Contact Lenses Require Frequent Checks After the Initial Fitting is Complete in Adults Under 40 With No Contraindications
Patients who want to wear contact lenses often need to visit the optician multiple times. For example, they might go for an eye test, then return for the contact lens fitting, come back to pick up the lenses, and then again for…
- Trial name
- CLARIFI (NCT07370168)
- Where
- United Kingdom
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Aston University
Astigmatism, Myopia
Comparative Clinical Evaluation of Soft Toric Lens Designs
This study is evaluating the initial fit of toric contact lenses.
- Trial name
- NCT01552876
- Testing
- etafilcon A, nelfilcon A, Filcon II 3
- Where
- United Kingdom
- Volunteers
- 42 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Astigmatism
Subjective Wearing Experience of the Total30 for Astigmatism Lens Among Satisfied Biofinity Toric Lens Wearers
To subjectively evaluate wearing experience in the T30fA lens among subjects who were already satisfied with their Biofinity Toric lenses.
- Trial name
- NCT05938010
- Testing
- Dailies Total1® contact lenses for astigmatism (T30fA)
- Where
- United States
- Volunteers
- 42 people
- Sponsor
- Scripps Poway Eyecare and Optometry
Cataract Extraction
Clinical Evaluation of the Use of Sealed Capsule Irrigation With Sodium Chloride During Pediatric Cataract Surgery and IOL Implantation
This study involves using both a device that seals the capsular bag (where the lens is located) allowing safer irrigation of the capsular bag and sodium chloride to irrigate the capsular bag during cataract surgery on children.
- Trial name
- NCT00366613
- Testing
- Cataract surgery with Perfect Capsule and Sodium Chloride
- Where
- United States
- Sponsor
- Medical University of South Carolina
Cataract
Outcomes of Clareon PanOptix Pro in Patients With Prior Myopic Refractive Surgery
This study is a Single center, single arm, prospective, observational study of clinical outcomes following bilateral cataract surgery and Clareon PanOptix Pro implantation.
- Trial name
- NCT06555289
- Testing
- Clareon PanOptix Pro IOL
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Juliette Eye Institute Research Center
Cataract
A Cataract Surgery Clinical Trial
The purpose of the study is to compare the efficiency and safety of UNITY™ Vitreoretinal Cataract System (UNITY VCS) to CENTURION® Vision System with Active Sentry (CAS) in adult subjects with grade 2 or greater nuclear sclerotic…
- Trial name
- NCT07044674
- Testing
- UNITY Vitreoretinal Cataract System, CENTURION Vision System with Active Sentry, Anterior segment ophthalmic surgery
- Where
- 5 sites in United States
- Sponsor
- Alcon Research
Myopia, Intraocular Lens Complication
Trifocal Intraocular Lens in High Myopic Patients With Different Meta-PM Grading
Study the postoperative visual quality and safety of trifocal intraocular lenses implanted in patients with different levels of myopic maculopathy stages according to Meta-PM staging (stage 0-2).
- Trial name
- NCT05718076
- Testing
- cataract surgery
- Where
- 2 sites in China
- Volunteers
- 60 people
- Sponsor
- Aier School of Ophthalmology, Central South University
Peripheral Vascular Access in Pediatric Patients, Peptic Ulcer
The Effect of Vascular Imaging Devices on Success Rates of Peripheral Vascular Access in Pediatric Patients
The study was designed as a prospective, observational study. Pediatric patients under 18 years of age scheduled for peripheral vascular access placement during day-case surgery or non-operating room anesthesia (NORA) will be…
- Conditions
- Peripheral Vascular Access in Pediatric Patients, Peptic Ulcer, Cataract, Crohn's Disease
- Trial name
- NCT07315711
- Where
- 6 sites in Turkey (Türkiye)
- Volunteers
- 500 people
- Sponsor
- Sibel Seçkin Pehlivan
Presbyopia
Clinical Outcomes With a New Monofocal IOL Enhanced for Intermediate Vision
phacoemulsification with insertion of EYHANCE IOL to improve near and intermediate vision
- Trial name
- NCT04904887
- Testing
- phacoemulsification
- Where
- Kuwait
- Volunteers
- 40 people
- Sponsor
- Dar Al Shifa Hospital
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