Clinical trials: Lens Diseases
Keratoconus
The Homburg Keratoconus Center (HKC)
Aim of this study is to conduct longitudinal and cross-sectional analyses about the corneal ectatic disease Keratoconus based on data obtained from Keratoconus patients in the Homburg Keratoconus Center (HKC).
- Trial name
- NCT03923101
- Testing
- Topographic, tomographic and biomechanical analysis.
- Where
- Germany
- Volunteers
- 5,000 people
- Sponsor
- Universität des Saarlandes
Allergic Conjunctivitis
Evaluation of Efficacy and Safety of an Anti-Allergy Drug With a Contact Lens in Allergic Conjunctivitis
The purpose of this study is to evaluate the efficacy and safety of an anti-allergy drug with a contact lens compared to placebo in preventing ocular itching associated with allergic conjunctivitis
- Trial name
- NCT00432757
- Testing
- Ketotifen with a Contact Lens (generic name not yet established)
- Where
- 3 sites in United States
- Volunteers
- 120 people
- Sponsor
- Vistakon Pharmaceuticals
Cataract
Anterior Capsule Polishing Effect on Effective Lens Position
The purpose of this study is to evaluate effects of anterior capsule polishing on effective lens position (ELP) and actual axial movement of the intraocular lens (IOL) by measuring anterior chamber depth (ACD) patients with…
- Trial name
- NCT01598428
- Testing
- anterior capsule polishing
- Where
- China
- Volunteers
- 20 people
- Sponsor
- Shandong University
Myopia
Comparison of Lens Care Regimens With a Silicone Hydrogel Lens (Emerald)
The purpose of the study is to evaluate and compare, on a daily wear basis, the performance of two contact lens care solutions when used with silicone hydrogel soft contact lenses with regards to comfort and dryness symptoms.
- Trial name
- NCT00520351
- Testing
- ClearCare, Optifree Replenish
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia
Evaluation of The Clinical Acceptance of Soft Contact Lenses for Myopia Control
The main objective of the study was to evaluate the clinical acceptance of soft contact lenses for Myopia control.
- Trial name
- NCT04709237
- Testing
- omafilcon A control lens, omafilcon A test lens 1, omafilcon A test lens 2
- Where
- United Kingdom
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Refractive Error
AIR OPTIX® COLORS Registration Trial
The purpose of this study was to evaluate the subjective and objective performance and the physiological response to AIR OPTIX® COLORS soft contact lenses compared with AIR OPTIX® AQUA contact lenses in participants with normal…
- Trial name
- NCT01440322
- Testing
- Lotrafilcon B contact lens with color, Lotrafilcon B contact lens
- Volunteers
- 150 people
- Sponsor
- CIBA VISION
Cataract
Post Approval Study to Evaluate the Trulign™ Toric Posterior Chamber IOL
To evaluate the incidence of IOL vaulting (ie, position change) of the Trulign™ Toric IOL following cataract surgery.
- Trial name
- NCT02394379
- Testing
- Trulign™ Toric IOL
- Where
- United States
- Volunteers
- 600 people
- Sponsor
- Bausch & Lomb Incorporated
Cataract
Laser Treatment of the Crystalline Lens
The use of a femtosecond laser in cataract surgery that gives equivalent or improved results comapred to conventional phaco-emulsification surgery.
- Trial name
- NCT01001117
- Testing
- LensAR laser surgery, Phaco-emulsification cataract surgery
- Where
- Mexico
- Volunteers
- 75 people
- Sponsor
- LensAR Incorporated
Diabetic Retinopathy Patients After Vitrectomy
Comparison of the Visual Quality of Traditional Ultrasound Biometrics and Lenstar on the Cataract After Pars Plana Vitrectomy
Comparison of the visual quality of traditional ultrasound biometrics and lenstar on the cataract patients with diabetic retinopathy after vitrectomy in the 3 months later.To evaluate the clinical value of lenstar in…
- Trial name
- PPV (NCT03485586)
- Testing
- Traditional ultrasound biometrics, Lenstar
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Bojie Hu
Myopia
Wearability of and Myopia Progression With ZEISS MyoCare Spectacle Lenses
This is a clinical trial evaluating the wearability and effectiveness of three types of ZEISS spectacle lenses in controlling myopia progression.
- Trial name
- NCT07021560
- Testing
- ZEISS MyoCare spectacle lenses, ZEISS SV RX SPH 1.5, ZEISS Clearview
- Where
- Vietnam
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- ZEISS Vision Care
Myopia
Multi-Centre Clinical Evaluation Of Two Daily Disposable Contact Lenses
The purpose of this study is to compare the subjective performance for handling of two daily disposable contact lenses, stenfilcon A and etafilcon A.
- Trial name
- NCT01707238
- Testing
- etafilcon A, stenfilcon A
- Where
- 7 sites in United Kingdom
- Volunteers
- 100 people
- Sponsor
- CooperVision, Inc.
Myopia
Clinical Comparison of Two Daily Disposable Lenses Among Daily Disposable Lens Wearers
The primary objective of this trial is to evaluate the subjective performance of two different daily disposable contact lenses in a population of daily disposable lens wearers.
- Trial name
- NCT01134211
- Testing
- nelfilcon A, filcon II 3
- Where
- Germany
- Volunteers
- 316 people
- Sponsor
- CIBA VISION
Intraocular Lens Dislocation
Late In-the-bag intraOcular Lens dislocatioN Surgery
Overall aim of the study is to compare the safety and efficacy of two different surgical methods to treat Late In-the-bag intraocular lens dislocation.
- Trial name
- LION (NCT03276104)
- Testing
- IOL repositioning, IOL exchange
- Where
- Norway
- Volunteers
- 50 people
- Sponsor
- Oslo University Hospital
Pediatric Cataract
The Cohort Study of Pediatric Cataract
This retrospective-prospective bidirectional cohort study aims to observe ocular parameter changes, different surgical/vision recovery strategies and postoperative adverse effects among young children with cataract.
- Trial name
- NCT05472844
- Where
- China
- Volunteers
- 5,000 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Refractive Error
Ocular Comfort and the "Aging" Lens (ERBIUM)
The purpose of this trial was to evaluate the factors affecting comfortable contact lens wear and how those factors affect contact lens replacement frequency.
- Trial name
- NCT01198600
- Testing
- Habitual contact lens, Lotrafilcon B contact lens, Contact lens cleaning and disinfecting system (ClearCare)
- Where
- Canada
- Volunteers
- 78 people
- Sponsor
- CIBA VISION
Cataract
Using Psychophysics Methods to Investigate Sensory Dominance After Cataract Surgery
Using Psychophysics Methods for Quantitative Assessment of Sensory Binocular Imbalance After Cataract Surgery
- Trial name
- NCT06751342
- Where
- China
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Myopia, Preschool
Early Intervention for Premyopic Children
The purpose of this research project is to add evidence of pharmacological (0.01% atropine) and optical (Defocus Integrated Multiple Segments spectacle lenses) approaches for myopia prevention among premyopic preschoolers, which…
- Trial name
- NCT06200194
- Testing
- MiyoSmart Spectacles, 0.01% atropine
- Where
- Taiwan
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- National Yang Ming Chiao Tung University Hospital
Myopia
CHILDREN MYOPIA CONTROL
The purpose of this trial is evaluating the clinical effect of a myopia control spectacle lens compared to a single vision spectacle lens in slowing down the progression of myopia in children living in Israel.
- Trial name
- NCT05477329
- Testing
- Lenses
- Where
- Israel
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Shamir Optical Industry Ltd
Cataract
Penetrance of Third Generation Fluoroquinolones in Eyes With Functioning Filtering Blebs
Based on previous results with eyes without filtering blebs, the aqueous concentrations of ofloxacin and levofloxacin will exceed the concentration of ciprofloxacin after either topical or topical plus oral administration.
- Trial name
- NCT00392275
- Testing
- Ofloxacin 0.3%, Ciprofloxacin 0.3%, Levofloxacin 0.5%
- Where
- 3 sites in United States
- Volunteers
- 48 people
- Sponsor
- Indiana University
Myopia, Progressive
Differences and Wearing Safety and Comfort of New Defocus Incorporated Multiple Segments Spectacle Lenses
To evaluate the differences in controlling the progression of myopia in adolescents and the safety and comfort of wearing different types of defocus incorporated multiple segments spectacle lenses, to explore the feasibility of…
- Trial name
- NCT06221592
- Testing
- defocus spectacle lenses
- Where
- China
- Volunteers
- 252 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center