Clinical trials: Error, Refractive
Cataract, Corneal Astigmatism
Clinical Investigation of the Safety and Effectiveness of an Investigational Model of the TECNIS® Intraocular Lens
This study will be a prospective, multicenter, bilateral, comparative, three-way masked (Sponsor, subject and evaluator), randomized clinical investigation conducted at up to 15 sites.
- Trial name
- BRAVO (NCT03949335)
- Testing
- IOL Model ZFR00V, IOL Model ZCB00
- Where
- 15 sites in United States
- Volunteers
- 272 people
- Sponsor
- Johnson & Johnson Surgical Vision, Inc.
Retinal Perforations, Myopia, Degenerative
Corneal Flap Transplantation for Macular Hole Repair of High Myopia
The goal of this clinical trial is to learn about an innovative surgical technique for macular hole repair. This technique is for patients with high myopia using pars plana vitrectomy (PPV) combined with corneal flap…
- Trial name
- NCT05875909
- Testing
- corneal flap transplantation
- Where
- China
- Volunteers
- 30 people
- Sponsor
- First People's Hospital of Hangzhou
Myopia
Study of Theories About Myopia Progression (STAMP)
At this time, we do not know what causes a child to become more nearsighted (myopic). STAMP will help us better understand nearsightedness in children.
- Trial name
- NCT00335049
- Testing
- progressive addition spectacle lens (bifocal), Single Vision Lenses (SVLs)
- Where
- United States
- Volunteers
- 85 people
- Sponsor
- Ohio State University
Astigmatism
Success of Dailies Total1 for Astigmatism Contact Lenses in Patients That Have Previously Failed With Toric Contact Lenses
The objective is to determine the percentages of past toric CL wearers (who dropped out of contact lens wear due to dissatisfaction with comfort or vision) who are satisfied with the comfort and vision of DT1fA contact lenses.
- Trial name
- NCT05886452
- Testing
- DT1fA contact lenses
- Where
- United States
- Volunteers
- 65 people
- Sponsor
- Mann Eye Institute
Myopia
Tolerability of a Novel Spectacle Design With Reduced Peripheral Contrast
Prospective, randomized, subject-masked 3-arm clinical study to assess the pediatric acceptability across three iterations of a novel spectacle lens design.
- Trial name
- WALNUT (NCT03761758)
- Testing
- Spectacle lenses
- Where
- Canada
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
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
Cataract, Refractive Surgery
Refractive Change Induced by 2.8-mm Corneal Incision
The investigators' purpose is to study the induced refractive change caused by different 2.8-mm corneal incision locations in phacoemulsification, because the investigators hypothesize that the effect may be different for nasal…
- Conditions
- Cataract, Refractive Surgery, Astigmatism
- Trial name
- CINPHA (NCT00742950)
- Testing
- Nasal 2.8-mm corneal incision, Temporal 2.8-mm corneal incision, Superior 2.8-mm incision
- Where
- Spain
- Volunteers
- 108 people
- Sponsor
- Hospital Universitario Ramon y Cajal
Myopia
Comparative Study of the Wearing Satisfaction of Two Soft Contact Lens Designs.
To evaluate the wearing satisfaction of a new design of the PureVision soft contact lenses.
- Trial name
- NCT00768885
- Testing
- PureVision 1, PureVision 2
- Where
- Japan
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Astigmatism
A Clinical Comparison of Two Soft Toric Contact Lenses
The aim of this study is to compare the short-term clinical performance of two toric contact lenses.
- Trial name
- NCT06758089
- Testing
- Lens 1 (ocufilcon D), Lens 2 (somofilcon A)
- Where
- United Kingdom
- Volunteers
- 42 people
- Sponsor
- CooperVision International Limited (CVIL)
Presbyopia Correction, Astigmatism
A Planned Study at Multiple Sites is Being Done to Compare the Results of Two Types of Trifocal Toric Intraocular Lenses Used in Cataract Surgery
To evaluate the clinical outcomes and patient satisfaction of two commercially available trifocal toric intraocular lenses Primary Objective: To compare the distance-corrected intermediate visual acuity between the two trifocal…
- Conditions
- Presbyopia Correction, Astigmatism, Cataract
- Trial name
- NCT07232615
- Testing
- Optiflex TRIO Intraocular Lens, AcrySof® IQ PanOptix®
- Where
- 6 sites in Germany, India and 1 more
- Volunteers
- 138 people
- Sponsor
- Biotech Healthcare Holding Gmbh
Presbyopia
A Study to Assess Safety and Efficacy in Participants Age 40 to 55 With Presbyopia (Old Eye) Who Receive AGN-190584 in Both Eyes Twice Daily
Currently available treatments for presbyopia (old eye) include nonsurgical options (spectacles or contact lenses) and surgical options, however, each has its own risks and limitations.
- Trial name
- Virgo (NCT04983589)
- Testing
- Pilocarpine HCl, Vehicle
- Where
- 23 sites in United States
- Volunteers
- 230 people
- Sponsor
- Allergan
Astigmatism
The Effect of the Changes in Cylinder Power and Axis of Toric Soft Contact Lenses on the Visual Quality, Satisfaction and Vision Acceptability in Astigmatic Subjects
Toric SCL combined spheric lens power with cylinder power and axis. However, in Indonesia, the availability of cylinder power and axis parameter variations between products are still narrow, with stock-keeping units (SKUs)…
- Trial name
- NCT06937489
- Testing
- Hydrogel conventional toric lenses with -10° axis misalignment, Hydrogel conventional toric lenses with +10° axis misalignment, Hydrogel conventional toric lenses with undercorrection of 0.5 D
- Where
- Indonesia
- Volunteers
- 20 people
- Sponsor
- Universitas Indonesia
Refractive Errors
Prospective Study of the Health Benefits of Ultra-Violet Filtering Contact Lenses
The purpose of this study is to examine the short-term protective effect of Ultra-Violet filtering contact lenses on macular pigment ocular density.
- Trial name
- NCT01444313
- Testing
- narafilcon A contact lens, nelfilcon A soft contact lenses
- Where
- United Kingdom
- Volunteers
- 40 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Aphakia, Astigmatism
Clareon IOL Retrospective Data Collection
The purpose of this study is to provide real world evidence (RWE) on the performance of the Clareon ultraviolet absorbing (UVA) intraocular lenses (IOLs) to support the overall body of evidence on the Clareon IOL family.
- Trial name
- NCT05796674
- Testing
- Clareon UVA IOL, WaveTec Optiwave Refractive Analysis (ORA) System, Cataract surgery
- Where
- United States
- Volunteers
- 1,090 people
- Sponsor
- Alcon Research
Refraction Error, Myopia
Age and Refraction in Predicting Myopia Progression in COVID-19
To determine the longitudinal changes of age and refraction in predicting myopia progression with risk under the coronavirus disease 2019 (COVID-19) pandemic in a 3-year follow-up of a Chinese cohort.
- Trial name
- NCT05305274
- Testing
- screening
- Where
- China
- Volunteers
- 34,400 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Presbyopia
The Effect of Orally Administered Extracts of Chokeberry, Kamchatka Berry and Blueberry on the Condition of the Eye.
This study evaluated whether a standardized berry-extract dietary supplement (AKB; Aronia melanocarpa, Lonicera caerulea, Vaccinium myrtillus) improves visual function in adults with presbyopia.
- Trial name
- NCT07382882
- Testing
- AKB
- Where
- Poland
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Wroclaw Medical University
Myopia, Environment
Environmental Factors and Myopia Prevalence Among Uyghur Students in Remote China
Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results.
- Trial name
- NCT07119723
- Where
- China
- Volunteers
- 100,000 people, healthy volunteers welcome
- Sponsor
- Tianjin Medical University Eye Hospital
Cataract
A Comparison of Visual Function After Bilateral Implantation of Presbyopia-Correcting Intraocular Lenses (IOLs)
The purpose of this study is to evaluate visual and refractive parameters in a series of subjects bilaterally implanted with presbyopia-correcting intraocular lenses (IOLs) during cataract surgery.
- Trial name
- NCT01257217
- Testing
- AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1, AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT, Acri.LISA® 366D IOL
- Volunteers
- 31 people
- Sponsor
- Alcon Research
Refractive Error
Tear Film Stability of DAILIES® AquaComfort Plus® Contact Lenses vs. MyDay® Daily Disposable Contact Lenses
The purpose of this study is to evaluate tear film stability of DAILIES® AquaComfort Plus® (DACP) compared to MyDay® after 12 hours of lens wear.
- Trial name
- NCT02089191
- Testing
- Nelfilcon A contact lenses, Stenfilcon A contact lenses
- Where
- Germany
- Volunteers
- 31 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
DAILIES TOTAL1® Soft Contact Lenses - Post-Market Clinical Follow-up Study
The purpose of this study is to continuously assess the visual performance and safety of DAILIES TOTAL1 soft contact lenses in a real world setting and broader patient base through routine clinical practices.
- Conditions
- Myopia, Hyperopia, Presbyopia, Astigmatism
- Trial name
- NCT06483113
- Testing
- Delefilcon A spherical soft contact lenses, Delefilcon A toric soft contact lenses, Delefilcon A multifocal soft contact lenses
- Where
- 12 sites in United States
- Volunteers
- 192 people
- Sponsor
- Alcon Research
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