Clinical trials: Lens Diseases
Cataract, Glaucoma
IOP Changes Associated With SICS and Phako
Prospective randomized trial in patients requiring cataract surgery in which IOP, angle anatomy and other demographic and clinical data are compared. Subjects randomized to both MSICS and phakoemulsification
- Trial name
- NCT02642211
- Testing
- cataract surgery
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Robin, Alan L., M.D.
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
Ametropia
Ocular Responses to Short and Long-term Lens Wear
The purpose of this study was to determine whether ocular surface sensitivity to pneumatic, mechanical and chemical stimulation would be affected by the use of the combination of a specific silicone hydrogel lens material with…
- Trial name
- NCT00722891
- Testing
- Purevision Lenses with ReNu Multiplus, Purevision Lenses with Optifree RepleniSH
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Clinical Evaluation of a Myopia Control Lens in Slowing Myopia Progression (DAL)
This is a mono-centre, prospective, one-arm, unmask clinical trial to evaluate the effectiveness of test lens in slowing myopia progression with respect to axial length elongation compared to a single vision spectacle lens from…
- Trial name
- NCT05840185
- Testing
- Test myopia control lenses (DAL)
- Where
- Singapore
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Essilor International
Presbyopia
Assessment of Three Basic Progressive Lens Designs
This clinical trial investigates the differences between three different progressive addition lens designs. It is a non-invasive double-masked randomized clinical investigation. For this study, 80 participants will be recruited.
- Trial name
- NCT05252871
- Testing
- Progressive Additional Lenses (PAL), pre calibrated and made of polymeric material with anti-reflection coating
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Western University of Health Sciences
Amblyopia, Myopia
Performance of a Photoscreener for Vision Screening in a Haitian Pediatric Population
Screening of haitian children between the ages of 3 and 6 years old for amblyogenic risk factors with the use of the Spot photoscreener. The photoscreener results will be compared to the complete ophthalmologic evaluation.
- Conditions
- Amblyopia, Myopia, Hyperopia, Astigmatism
- Trial name
- POPH (NCT02655432)
- Testing
- Spot photoscreener, Ophthalmologic evaluation, Cyclopleged refraction
- Where
- 3 sites in Haiti
- Volunteers
- healthy volunteers welcome
- Sponsor
- Université de Montréal
Macular Pucker
Compare ELP in Patients With Elective Phaco-VTX Surgery in One Eye and a Single Lens Phaco Surgery on the Other Eye
The aim of the study is to gain more insight into the potential impact of a vitrectomy (removal of the vitreous) on postoperative effective position of the intraocular lens (IOL).
- Trial name
- ELP (NCT04397068)
- Testing
- phaco-vitrectomy
- Where
- Belgium
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Keratoconus, Irregular Astigmatism
Wavefront Guided Scleral Lenses for Keratoconus and Irregular Astigmatism
Aberrations are the spreading of light from a point focus. Aberrations of the eyes can be objectively evaluated with a wavefront aberrometer.
- Conditions
- Keratoconus, Irregular Astigmatism, Corneal Ectasia, Aberration, Corneal Wavefront
- Trial name
- WFG Sclerals (NCT04698590)
- Testing
- Wavefront Guided Scleral Lenses, Traditional Scleral Lenses
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Cornea and Laser Eye Institute
Cataract
Evaluation of the EpiGlare Tester for the Measurement of Glare-Induced Changes in BSCVA in Subjects With and Without Cataracts
The EpiGlare Tester will identify visual disability resulting from the glare experienced by subjects with cataracts in the glare-induced change in best spectacle corrected visual acuity (BSCVA).
- Trial name
- NCT04739397
- Testing
- Glare Testing
- Where
- United States
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Epico, LLC
Cataracts
Comparing Optical Coherence Tomography (OCT) and Visual Acuity Outcomes in Subjects Undergoing Cataract Surgery, Who Receive Xibrom Ophthalmic Solution and Standard Presurgical Care vs. Xibrom Ophthalmic Solution Plus Prednisolone Acetate 1% and Standard Presurgical Care
To compare the efficacy of twice-daily topical bromfenac (Xibrom) ophthalmic solution alone versus twice-daily topical Xibrom with prednisolone acetate 1% three-times daily on visual acuity and OCT measurements.
- Trial name
- NCT00698724
- Testing
- Xibrom, and Optive, Xibrom and Pred Forte
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Bp Consulting, Inc
Myopia
Discontinuation of Lens Wear in New Ortho-k Children (DOEE2)
This study aims at investigating the efficacy of myopic control using ortho-k in younger and older children.
- Trial name
- DOEE2 (NCT01236755)
- Testing
- single-vision glasses, ortho-k lenses
- Where
- China
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Contact Lenses, Presbyopia
Clinical Performance of Verofilcon A Toric Contact Lenses
The goal of this clinical trial is to [primary purpose: is to determine if Total30 Multi focal toric conntact lensesare comfortable and the willigness for those who have previously worn reusable toric contact lenses are willing…
- Trial name
- NCT07586982
- Testing
- Total 30 multi foric contact lenses
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Southern College of Optometry
Myopia
The Clinical Comparison of Senofilcon A and Stenfilcon A Contact Lenses
The objective of this study is to compare the clinical performance of senofilcon A lens with the stenfilcon A lens each for one week of daily disposable wear.
- Trial name
- NCT02643004
- Testing
- Senofilcon A, Stenfilcon A
- Where
- United Kingdom
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Astigmatism
The Clinical Study of Silicone Hydrogel Daily Disposable Stenfilcon A Toric Lens
The aim of this study is to evaluate the clinical performance of stenfilcon A toric lenses compared with etafilcon A toric lenses for astigmatism.
- Trial name
- NCT02801006
- Testing
- stenfilcon A, etafilcon A
- Where
- 2 sites in Japan
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Cataract
A Prospective, Randomized, Subject and Vision-assessor Masked, Multicenter Study Comparing Bilateral Clareon PanOptix, Bilateral Clareon PanOptix Pro, and Mixed Clareon PanOptix Pro/Vivity Intraocular Lens Implantation in Cataract Subjects
Prospective, randomized, multicenter, multi-arm, subject and vision-assessor-masked, two stage study with Stage 1 as a three-arm initial enrollment period, followed by Stage 2 as a head-to-head study refined based on the Stage 1…
- Trial name
- NCT06922084
- Testing
- Clareon PanOptix, Clareon PanOptix PRO, Mix-and-Match PanOptix/Vivity
- Where
- 2 sites in United States
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Berkeley Eye Center
Presbyopia
Mix and Match Study of Two Multifocal Intraocular Lens With Different Add Power
To assess postsurgical visual acuity (distant, intermediate, near), refractive errors, contrast sensitivity, visual function and patient satisfaction after implantation of multifocal IOLs of different add power contralaterally.
- Trial name
- NCT02556944
- Testing
- Phacoemulsification with multifocal intraocular lens
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- tae-young chung
Cataract
Clinical Investigation of Omega Refractive Capsule, Model VI
The objective of this study is to evaluate the safety and effectiveness of the investigational Omega Refractive Capsule (model VI)
- Trial name
- ORCVI (NCT04574115)
- Testing
- Omega Refractive Capsule with an FDA approved Intraocular Lens, FDA approved Intraocular Lens
- Where
- Costa Rica
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Omega Ophthalmics
Cataract
Assessment of Low Energy Lens Fragmentation Cataract Extraction in Patients Undergoing Cataract Surgery
The purpose of this research study is to evaluate the clinical outcomes of the use of low-energy segment removal with a micro-interventional irrigation/aspiration port (MICOR-304) to evacuate the lens prior to intraocular lens…
- Trial name
- NCT04747834
- Testing
- MICOR-304
- Where
- 3 sites in United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Myopia
The Effect of Blue-light Filtering Spectacle Lenses on Myopia Progression in Schoolchildren
The purpose of this study is to investigate if the blue-light filtering spectacle lenses promote myopia progression in schoolchildren.
- Trial name
- NCT03538002
- Testing
- Blue-light filtering spectacle lenses
- Where
- Hong Kong
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Cornea
Euclid Phoenix Lens Design Trial
The "first fit" success rate of the current Euclid orthokeratology "MAX" lens design will be compared to that of the new Euclid orthokeratology MAX "Phoenix" lens design in 30 children.
- Trial name
- NCT06389916
- Testing
- Euclid orthokeratology MAX (current design), Euclid orthokeratology MAX Phoenix (new design)
- Where
- 5 sites in United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Euclid Systems Corporation