Clinical trials: Lens Disease
Retinal Detachment, Macular Pucker
Zeiss RESIGHT Disposable Lenses Evaluation Study
To evaluate the intra-operative efficacy of a new intra-operative viewing device.
- Conditions
- Retinal Detachment, Macular Pucker, Macular Holes, Vitreomacular Traction
- Trial name
- RESIGHT (NCT05860985)
- Testing
- ZEISS disposable
- Where
- Belgium
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Myopia
Choroidal Response to the Modified Defocus Incorporated Multiple Segments Spectacle Lenses
The goal of this study is to investigate the short-term changes in choroidal thickness and efficacy of the study spectacle lenses in children.
- Trial name
- NCT07547072
- Testing
- Modified Defocus Incorporated Multiple Segments lens (D1), Modified Defocus Incorporated Multiple Segments lens (D2)
- Where
- Hong Kong
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Refractive Error - Myopia Simple
Evaluation of the Safety and Efficacy of PEGAVISION Silicone Hydrogel Daily Disposable Soft Contact Lenses (G3)
The goal of this clinical trial is to learn if PEGAVISION Silicone Hydrogel Daily Disposable Soft Contact Lenses (G3) are safe and effective for vision correction in adults.
- Trial name
- NCT06995781
- Testing
- Experimental Intervention, Active Comparator Intervention
- Volunteers
- 69 people
- Sponsor
- Pegavision Corporation
Chronic Obstructive Pulmonary Disease (COPD), Asthma
Mitigating Chronic Respiratory Disease Through the Lens of Multimorbidity (MARES3)
The investigators aim to investigate how individuals attending primary healthcare (PHC) services in Brazil for treatment of non-communicable diseases (NCDs), identified there as having abnormal spirometry or as being at high risk…
- Conditions
- Chronic Obstructive Pulmonary Disease (COPD), Asthma, Preserved Ratio Impaired Spirometry (PRISM)
- Trial name
- NCT07134855
- Where
- 2 sites in Brazil
- Volunteers
- 473 people
- Sponsor
- University College, London
Myopia
Clinical Comparison of Two Daily Disposable Contact Lenses in a Population of Daily Disposable Contact Lens Wearers
The purpose of this study is to evaluate the performance of two commercially marketed daily disposable contact lenses in a population of daily disposable contact lens wearers.
- Trial name
- NCT01233076
- Testing
- Nelfilcon A contact lens, Narafilcon B contact lens
- Volunteers
- 60 people
- Sponsor
- CIBA VISION
Cataract
Evaluation the TECNIS IOL in Both Eyes VS the ReZoom IOL in One and TECNIS IOL in the Opposite
The purpose of this study is to evaluate the visual performance of two cohorts of patients who received multifocal intraocular lenses following cataract and clear lens extraction surgeries.
- Trial name
- NCT01253239
- Where
- United States
- Volunteers
- 175 people, healthy volunteers welcome
- Sponsor
- Frank A. Bucci, Jr., M.D.
Aphakia, Presbyopia
Exploratory Clinical Study for Techniques Associated With the Fluid Accommodating IOL
The purpose of this clinical study is to assess the repeatability of objective refraction using auto refraction on subjects bilaterally implanted (implanted in both eyes) with the Fluid Accommodating IOL (FAIOL).
- Trial name
- NCT04330001
- Testing
- Alcon Fluid Accommodating Intraocular Lens, Top Con Autorefractor
- Where
- 2 sites in El Salvador, Panama
- Volunteers
- 99 people
- Sponsor
- Alcon Research
Dry Eye, Contact Lens Complication
Dailies Total 1 Sphere Contact Lenses
CL discomfort is a complex phenomenon that has been defined by the Tear Film and Ocular Surface Society in their seminal report on contact lens (CL) discomfort as a condition that results in "episodic or persistent adverse ocular…
- Trial name
- NCT05239494
- Testing
- DT1 Sphere Contact Lenses
- Where
- 4 sites in United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Dry Eye
Optimization of Assessment and Grading for Lid Wiper Epitheliopathy
The purpose of this study is to assess eyelid margin staining, termed "lid wiper epitheliopathy" (LWE), in three populations. The hypothesis is LWE will be more prevalent in symptomatic contact lens wearers than non-symptomatic…
- Trial name
- BURNABY (NCT01611922)
- Testing
- Ophthalmic dye, Contact lenses
- Where
- Canada
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Cataract Congenital, Astigmatism
Toric Intraocular Lens Implantation in Pediatric Cataract
To evaluate the visual and refractive outcomes after an intraocular lens (IOL) implantation in pediatric eyes with cataract and preexisting corneal astigmatism
- Conditions
- Cataract Congenital, Astigmatism, IOL
- Trial name
- TILIPC (NCT06294795)
- Testing
- congenital/pediatric cataract surgery, Non-Toric IOLs, Toric IOLs
- Where
- 2 sites in Kazakhstan
- Volunteers
- 40 people
- Sponsor
- Kazakh Eye Research Institute
Cataract, Posterior Capsule Opacification
Posterior Capsulotomy in Cataract Complicated With Primary Posterior Capsule Opacification.
This is a two-arm, parallel group, open-label, randomized controlled trial to compare the visual acuity, visual quality, operative complications and the satisfaction of patients between primary posterior capsulorhexis group and…
- Trial name
- NCT03701139
- Testing
- posterior capsulotomy, laser capsulotomy
- Where
- China
- Volunteers
- 40 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Retinal Detachment, Lens Diseases
Retinal Detachment After Lens Surgery in the Nearsighted
This study aims to study the incidence of retinal detachment in the nearsighted myopic after phakoemulsification lens surgery and use of posterior chamber foldable soft implants with a follow-up of 5 years and preliminary results…
- Conditions
- Retinal Detachment, Lens Diseases, Short-Sighted
- Trial name
- A09F0401 (NCT04072939)
- Testing
- Patients having had a lens surgery
- Volunteers
- 101 people
- Sponsor
- University Hospital, Bordeaux
Presbyopia
Multifocal Visual Performance Study
The purpose of this trial was to compare the functional visual performance of Precision Profile Multifocal (MF) contact lenses to Progressive Addition Lens (PAL) spectacles in a presbyopic population.
- Trial name
- NCT03757039
- Testing
- Multifocal soft contact lenses, Progressive addition lens spectacles
- Where
- 2 sites in United States, United Kingdom
- Volunteers
- 42 people
- Sponsor
- Alcon Research
Cataract
Imaging and Spectral Analysis of the Crystalline Lens Using the "HYPERLAF" Slit Lamp
Cataract is the leading cause of reversible blindness and the first surgery worldwide. It corresponds to the crystalline lens opacification.
- Trial name
- HYPERLAF (NCT07875205)
- Testing
- Non-contact observation of the crystalline lens nucleus
- Where
- France
- Volunteers
- 50 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
Astigmatism
Comparison of Clinical Outcomes of Toric Intraocular Lens
This study is to compare the clinical outcome of Precizon toric intraocular lens(IOL) to that of Tecnis toric IOL.
- Trial name
- NCT03085901
- Testing
- Precizon toric intraocular lens, Tecnis toric intraocular lens
- Volunteers
- 40 people
- Sponsor
- Samsung Medical Center
Pseudoaphakia
Characterization and Causative Factors of Negative Dysphotopsia
The present study is designed as an exploratory study, seeking to investigate the correlation of patient complaints to subjective or objective measurement methods.
- Trial name
- NDys (NCT04224129)
- Where
- Austria
- Volunteers
- 10 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Congenital Cataract
Aphakia Versus Pseudophakia in Children Under 2 Years Undergoing Bilateral Congenital Cataract Surgery
The purpose of this study is to document the safety and efficacy of primary IOL implantation in children below 2 years of age undergoing congenital cataract surgery.
- Trial name
- NCT01297153
- Testing
- Intraocular Lens (Acrysof IOL), No IOL
- Where
- India
- Volunteers
- 100 people
- Sponsor
- Iladevi Cataract and IOL Research Center
Myopia
One Week Assessment of The Phenacite Lens
This study will investigate performance criteria over one week of daily wear to determine if the Study Test contact lens performs equivalently to the comfilcon A contact lenses in terms of subjective ratings and of visual…
- Trial name
- NCT02553395
- Testing
- Phenacite (Test) contact lens, comfilcon A contact lens
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- CooperVision, 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
Meibomian Gland Dysfunction, Dry Eye Syndromes
Meibomian Gland Dysfunction Management With ZEST Protocol
The purpose of this study is to investigate if cleaning the eyelid margin with the ZEST protocol (Zocular Eyelid System Treatment) in patients intolerant to contact lens wear consequent to Meibomian gland dysfunction (MGD) will…
- Conditions
- Meibomian Gland Dysfunction, Dry Eye Syndromes, Ocular Surface Disease
- Trial name
- NCT03968731
- Testing
- Zocular Eyelid System Treatment
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of the Incarnate Word
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