Clinical trials: Lens Disease
Cataract
Total Corneal Astigmatism Prevalence in Cataract Patients
The purpose of this study is to report the prevalence data for total corneal astigmatism (TCA) in cataract surgery candidates.
- Trial name
- NCT06148857
- Testing
- IOLMaster 700
- Where
- China
- Volunteers
- 11,000 people
- Sponsor
- Peking University Third Hospital
Cataract
Clinical Investigation of the AcrySof® IQ PanOptix™ IOL
The purpose of this study is to evaluate the effectiveness and safety of the AcrySof® IQ PanOptix™ Intraocular Lens (IOL) Model TFNT00 when implanted to replace the natural lens following cataract removal.
- Trial name
- NCT03090256
- Testing
- AcrySof® IQ PanOptix™ IOL
- Where
- 2 sites in Japan
- Volunteers
- 76 people
- Sponsor
- Alcon Research
Pseudoaphakia
Time Study for Biometry Measurements With the Lenstar and IntraOcularLens (IOL) Master 500
The objectives of this study are to determine the time needed to complete a full set of measurements (Total Ophthalmic Exam, Subject Data Entry and Acquisition of the Measurement) by each test device, the Lenstar 900 Version i4…
- Trial name
- NCT01550939
- Testing
- Ophthalmic Biometer
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Haag Streit USA
Aniridia, Iris; Deformity
Clinical Evaluation of Morcher Artificial Iris Diaphragms
The purpose of this study is to determine the safety and efficacy of Morcher iris diaphragms in the treatment of congenital and acquired aniridia.
- Trial name
- NCT00812708
- Testing
- Morcher iris diaphragm implantation
- Where
- United States
- Volunteers
- 72 people
- Sponsor
- University of California, Los Angeles
Cataract
Rotational Stability of the TECNIS Eyhance Toric
Evaluation of the rotational stability of a new toric intraocular lens (IOL), the TECNIS Eyhance toric II.
- Trial name
- NCT05126368
- Testing
- Cataract surgery
- Where
- Austria
- Volunteers
- 50 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Cataracts
Accuracy of Holladay 2 Formula in the Absence of Lens Thickness
Hypothesis: Holladay 2 formula is still accurate even used without lens thickness data.
- Trial name
- NCT01846078
- Testing
- optical biometric measurement (IOLMaster)
- Where
- Thailand
- Volunteers
- 143 people, healthy volunteers welcome
- Sponsor
- Mahidol University
Myopia, Myopia, Progressive
Can Distance Center and Near Center Multifocal Contact Lenses Control Myopia Progression in Children?
Myopia has been increasing in prevalence and severity throughout the world over the last 30 years. Increasing levels of myopia are associated with increased frequency and severity of various ocular pathologies.
- Trial name
- ADPADP (NCT03519490)
- Testing
- Hybrid Contact Lens
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Thomas A. Aller, OD
Diabetic Macular Edema, Cataract
Steroid vs. Anti-vascular Endothelial Growth Factor for Diabetic Macular Edema Prior to Phacoemulsification
The primary objective of this study is to compare the efficacy of antecedent intravitreal anti-vascular endothelial growth factor therapy vs.
- Trial name
- STAMP (NCT03832179)
- Testing
- Bevacizumab, Ranibizumab, Aflibercept
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Bay Area Retina Associates
Cataract, Glaucoma
Oculusgen (Ologen) Collagen Matrix Implant for Phaco-Trabeculectomy in Primary Glaucoma: A Case-Control Study
The objective of this study is to determine the safety and effectiveness of the OculusGen™ (ologen) Biodegradable Collagen Matrix Implant in hacotrabeculectomy surgery.
- Trial name
- NCT00687791
- Testing
- ologen™ Collagen Matrix Implant as an aid in phacotrabeculectomy surgery
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Pro Top & Mediking Company Limited
Myopia
Clinical Investigation of Buttermere (LENS 271) Soft Contact Lenses
The purpose of the study is to compare clinical performance between two soft contact lenses.
- Trial name
- NCT06609018
- Testing
- Test Lenses (stenfilcon A), Control Lenses (omafilcon A)
- Where
- United Kingdom
- Volunteers
- 73 people
- Sponsor
- CooperVision, Inc.
Cataracts
Multifocals and Accommodating/Bilateral Implantation of Different Multifocal Intraocular Lens (IOLs)
The purpose of this study is to evaluate vision at different distances (far (13 ft), intermediate (2.0 ft) and near (13 to 15 in)) with and without the patient's glasses (if the patient wears them), range of vision (the…
- Trial name
- NCT00934960
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Dry Eye Syndromes, Meibomian Gland Dysfunction
The Effect of Tear Supplements on Contact Lens Comfort
The primary goal of this investigation is to determine if lipid based artificial tear supplementation has an impact on contact lens discomfort (CLD).
- Trial name
- NCT02956083
- Testing
- Systane Balance eye drops, Systane Contacts eye drops, saline
- Volunteers
- 30 people
- Sponsor
- University of the Incarnate Word
Aqueous Tamponade, Cataract
Influence of Intravitreal Aqueous Tamponade on Lens Status and Ocular
To observe the effects of vitreous cavity Balanced salt solution (BSS) tamponade on the state of the lens and related parameters of the eye, and whether the changes of the above parameters are correlated with age, gender…
- Trial name
- NCT06133660
- Testing
- pars plana vitrectomy
- Where
- China
- Volunteers
- 21 people
- Sponsor
- Bo Jia
Cataract
Multifunctional Cataract Surgery Assistive Instruments Used in Cataract Surgery
In order to better cope with complex situations of cataract surgery, we designed and improved a new set of multi-functional cataract surgery auxiliary devices, including ophthalmic surgery auxiliary hooks, eye retractor hooks and…
- Trial name
- NCT06182605
- Testing
- multifunctional instruments, traditional instruments
- Where
- China
- Volunteers
- 1,000 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Presbyopia
Assessing the Clinical Performance of Two Frequent Replacement Silicone Hydrogel Multifocal Contact Lenses
The purpose of this clinical trial is to assess the clinical performance of LID223194 Multifocal (MF) contact lenses and commercially available Air Optix plus HydraGlyde (AOHG) MF contact lenses.
- Trial name
- NCT05702541
- Testing
- Lehfilcon A multifocal contact lenses, Lotrafilcon B multifocal contact lenses, Hydrogen peroxide-based cleaning and disinfection system
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- Alcon Research
Cataract
Study of T-PRED(TM) Compared to Pred Forte(R) II
Study of T-PRED(TM) Compared to Pred Forte(R)
- Trial name
- NCT00854061
- Testing
- T-Pred, Pred Forte
- Where
- United States
- Volunteers
- 172 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia, Ametropia
Clinical Evaluation of the Safety and Efficacy of a New Multifocal Contact Lens
The purpose of this study was to demonstrate substantial equivalence of the new DAILIES® AquaComfort Plus® Multifocal (DACP MF) contact lens to the commercially available Focus® DAILIES® Progressives (FDP) contact lens.
- Conditions
- Myopia, Ametropia, Presbyopia, Refractive Error
- Trial name
- NCT01797783
- Testing
- Nelfilcon A multifocal contact lens with comfort additive, Nelfilcon A multifocal contact lens
- Volunteers
- 83 people
- Sponsor
- Alcon Research
Astigmatism, Myopia
Evaluation of Two Daily Disposable Contact Lenses for Wearers With Astigmatism
The purpose of this trial is to compare the performance of two contact lenses for contact lens wearers with astigmatism.
- Trial name
- NCT01207466
- Testing
- Nelfilcon A investigational contact lens, Nelfilcon A commercial contact lens
- Volunteers
- 95 people
- Sponsor
- CIBA VISION
Cataract
Effect of 1.8-mm Steep-axis Clear Corneal Incision on the Posterior Corneal Astigmatism in Candidates for Toric IOL Implantation
we aimed to analyze the effects of cataract surgery using a 1.8-mm steep-axis clear corneal incision (CCI) on the posterior corneal surfaces based on the keratometry from the rotating Scheimpflug imaging device (Pentacam HR) in…
- Trial name
- NCT04924231
- Testing
- astigmatism
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Cataract
China OLIMPICS: China Ophthalmic Learning and Improvement Initiative in Cataract Surgery Trial
This is a prospective, investigator-masked randomised controlled education-intervention trial of intense simulation-based surgical education plus conventional training versus a current six-week standard training course.
- Trial name
- NCT03458442
- Testing
- Simulation-based surgical training, Standard surgical training
- Where
- China
- Volunteers
- 32 people
- Sponsor
- Sun Yat-sen University
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