Clinical Trials on Refractive Error

Total 4722 results

Acuity Polymers, Inc.
Andre Vision and Device Research

Completed

Clinical Evaluation of Acuity 200 (Fluoroxyfocon A) RGP Contact Lens (Acuity 200)

Refractive Errors

United States
Taipei Medical University Hospital

Unknown

Study to Evaluate the Safety and Efficacy of HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens

Refractive Errors

Taiwan
University of Alabama at Birmingham
National Eye Institute (NEI); National Institute on Aging (NIA); Research to... and other collaborators

Completed

Improving Vision and Quality of Life in the Nursing Home

Refractive Error | Cataract

United States
The Cleveland Clinic

Recruiting

Corneal Elastography and Patient Specific Modeling

Refractive Errors | Keratoconus | Cornea; Ectasia

United States
CIBA VISION
University of Waterloo

Completed

Fitting Children With Contact Lenses (COPPER)

Refractive Error

Canada
LENZ Therapeutics, Inc
ORA, Inc.

Completed

Phase 3 Evaluation of the Safety and Efficacy of LNZ101 for the Treatment of Presbyopia (CLARITY)

Eye Diseases | Refractive Error | Presbyopia | Miosis | Near Vision

United States
Sinclair Technologies, LLC

Completed

Vision Measured by the Vimetrics CVA Compared With Chart Testing Under Similar Luminance and Contrast Conditions

Refractive Error | Cataract | Maculopathy

United States, Austria
Alisyn Facemire
ORA, Inc.

Completed

Evaluation of the Safety and Effectiveness of Aceclidine (LNZ101) and Aceclidine + Brimonidine (LNZ100) in the Treatment of Presbyopia

Eye Diseases | Refractive Errors | Presbyopia | Miosis | Near Vision

United States
EyeQue Corp.

Recruiting

Handheld Device Compared With a Standard Eye Care Diagnostic Device in Measuring Ophthalmic Refraction

Refractive Errors | Vision Disorders

United States
Alaska Blind Child Discovery

Completed

Refractive Accuracy of "2WIN" and Portable Autorefractors

Astigmatism | Visual Impairment | Accomodation | Refractive Error - Myopia Axial | Hyperopia of Both Eyes

United States
Shanghai Eye Disease Prevention and Treatment Center
Brien Holden Vision

Recruiting

Shanghai Eye Study for Adults (SESA)

Blindness,Visual Impairment, Refractive Error, Cataract, High Myopia, Aging

China
Bursa Retina Eye Hospital

Completed

Refractive Changes Following Vitrectomy

Refractive Errors | Vitreous Hemorrhage | Retinal Detachment | Epiretinal Membrane

Turkey
Democritus University of Thrace
University of Thessaly

Recruiting

A Web-based Digital Distance Visual Acuity Test (DDVIT)

Refractive Errors | Vision Disorders | Low Vision

Greece
Medical University of Lublin

Completed

Refractive Outcomes After Cataract Surgery in Eyes With Pseudoexfoliation Syndrome

Refractive Errors | Cataract
Isra University

Completed

Trial of an Educational Intervention to Promote Spectacle Use Among Secondary School Children in Islamabad, Pakistan

Refractive Errors | Visual Impairment

Pakistan
Johns Hopkins University
National Institute on Aging (NIA)

Completed

A Study of Interventions to Reduce Disability From Visual Loss in Nursing Home Residents

Refractive Error | Cataract | Low Vision

United States
Chinese University of Hong Kong

Completed

Prevalence of Blindness, Visual Impairment in Chao Nan Area, China

Refractive Errors | Cataract | Blindness | Visual Impairment
Democritus University of Thrace
University of Thessaly

Completed

Development and Validation of an Internet-based Near and Intermediate-vision Reading Test (wDDART)

Refractive Errors | Presbyopia | Low Vision | Near Vision | Reading

Greece
Boston Children's Hospital
Fitz Frames, Inc.

Not yet recruiting

Access to EyeGlasses for School-aged Children (ATEG)

Refractive Errors | Myopia | Hyperopia | Amblyopia
Jaeb Center for Health Research
National Eye Institute (NEI); Pediatric Eye Disease Investigator Group

Withdrawn

Excimer Laser Surgery for Anisometropic Amblyopia (ATS19)

Refractive Errors | Anisometropic Amblyopia
Beijing Airdoc Technology Co., Ltd.

Completed

Myopia Control With Three Lever Irradiance of PBM Therapy in Children and Adults (MCPT)

Myopia | Amblyopia | Ametropia | Refractive Error - Myopia Axial

China
Rambam Health Care Campus

Recruiting

Rapid Computerized Visual Acuity Test

Refractive Errors | Cataract | Vision Disorders | Retinal Disease | Corneal Disease

Israel
Democritus University of Thrace

Unknown

Smart-TV Application for the Self Examination of the Distance Visual Acuity in Macular Edema Patients

Macular Edema | Refractive Errors | Low Vision

Greece
Fondation Ophtalmologique Adolphe de Rothschild

Completed

A Comparison of Two Devices for Measuring the Central Thickness of the Cornea Before and After Surgery (CECOT) (CECOT)

Disorders, Refractive

France
National Eye Institute (NEI)

Unknown

Vision In Preschoolers Study (VIP Study)

Refractive Error | Strabismus | Amblyopia

United States
Asociación para Evitar la Ceguera en México

Terminated

Anterior Stromal Changes After PRK by Using Intraoperative Mitomicin C

Refractive Disorders

Mexico
Fondation Ophtalmologique Adolphe de Rothschild

Completed

Visual and Optics Impact of Refractive Surgery (CRIVO)

Refractive Disorders

France
Fondation Ophtalmologique Adolphe de Rothschild

Completed

Comparison of Corneal Stromal Tissue Consumption (LATAC) (LATAC)

Disorders, Refractive

France
Benha University

Recruiting

Correction of Anisometropic Amblyopia in Children.

Refractive Errors | Amblyopia | Anisometropic Amblyopia | Anisometropia and Aniseikonia

Egypt
Bausch & Lomb Incorporated

Completed

1-Week Dispensing Evaluation of REVIVE™ Toric Soft Contact Lenses

Refractive Ametropia

United States
Minia University

Completed

Comparison Between TPRK Versus AAPRK in Correction of Myopia

Myopia | Refractive Surgery

Saudi Arabia, Egypt
Johnson & Johnson Vision Care, Inc.

Completed

Evaluation of the Performance of Two Contact Lenses Compared to a Marketed Lens

Refractive Ametropia

United States
Alcon Research

Completed

The Clinical Performance of Two Reusable Silicone Hydrogel Contact Lenses

Refractive Ametropia

United States
Alcon Research

Completed

Assessment of an Investigational Frequent Replacement Silicone Hydrogel Lens

Refractive Ametropia

United States
Kasr El Aini Hospital
Eyecare Center

Completed

Comparison Between the SBK Microkeratome Versus Femtosecond Laser in Flap Creation During LASIK Surgery for Myopia

Refractive Surgery

Egypt
Johnson & Johnson Vision Care, Inc.

Completed

Dispensing Evaluation of Subjective Comfort, Vision, and Handling of a New Lens Compared to a Marketed Lens

Refractive Ametropia

United States
Abbott Medical Optics

Completed

Feasibility of iFS™ for Intrastromal Arcuate Keratotomy (ISAK) Procedures

Refractive Astigmatism

Austria
Bausch & Lomb Incorporated

Completed

A Study to Evaluate the Safety and Effectiveness of a Contact Lens Cleaning and Disinfecting Solution

Refractive Ametropia

United States
Alcon Research

Completed

Clinical Evaluation of a Manufacturing Process for a Frequent Replacement Silicone Hydrogel Multifocal Contact Lens

Refractive Ametropia

United States
Bausch & Lomb Incorporated

Completed

Kalifilcon A Toric Compared to Commercially Available Lenses

Refractive Ametropia

United States
Cairo University

Completed

Topography Guided LASIK by Different Protocols for Treatment of Astigmatism

Refractive Surgery

Egypt
Holhos Larisa Bianca

Completed

Refractive Disorders and Seric Vitamin D Level in Children With Disabilities (REDIC)

Child, Only

Romania
Mladen Busic

Completed

Vision Screening for the Detection of Amblyopia

Refractive Errors | Strabismus | Amblyopia | Ptosis | Anisometropia

Croatia
Salus University

Completed

Binocular Vision Anomalies After Cataract and Refractive Surgery

Refractive Errors | Cataract | Binocular Vision Disorder

United States
Alcon Research

Completed

Air Optix Night and Day Aqua (AONDA) Retrospective Study 1

Myopia | Hyperopia | Refractive Ametropia

United States
Sakarya University

Completed

Changes in Refractive Error in Patients With Both Partially Refractive Esotropia and Amblyopia

Refractive Errors | Esotropia | Amblyopia Strabismic

Turkey
Eye Hospital Pristina Kosovo

Enrolling by invitation

Treatment of Residual Hypermetropic Refraction on Young Patients After LASIK Using Human Fresh Corneal Lenticule Implantation With ReLEX Smile Surgery (Relex-Smile)

Refractive Errors

Kosovo
Unicon Optical Co. Ltd.

Completed

Safety and Effectiveness of the Qualis Contact Lens

Refractive Errors

United States
Alcon Research

Completed

Clinical Performance of Two Reusable Silicone Hydrogel Contact Lenses

Refractive Errors

United States
Alcon Research

Completed

Clinical Performance of Two Daily Disposable Soft Contact Lenses

Refractive Errors

United States

Clinical Trials on Refractive Error

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