Clinical trials: Refractive Error
Myopia Progressing
3D Designed Defocus Lenses on Myopia Control in Children and Adolescents
This study aims to evaluate the effectiveness of lenses with 3D Designed Defocus in controlling the progression of myopia in children and adolescents, and to explore the feasibility of effective design, and apply personalized…
- Trial name
- NCT07284147
- Testing
- Defocus Lenses
- Where
- China
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
A Clinical Assessment of the Hemacopolymer Daily Disposable Limbal Ring Soft Contact Lens
This purpose of this study is to compare the clinical performance and subjective acceptance of two different daily disposable limbal ring lenses.
- Trial name
- NCT01965262
- Testing
- Hema-copolymer Lens, etafilcon A Lens
- Where
- United Kingdom
- Volunteers
- 30 people
- Sponsor
- CooperVision, Inc.
Presbyopia
Perceptions of Ophthalmologists Regarding Contemporary Presbyopia Management.
Different attitudes and perceptions are encountered concerning contemporary presbyopia management. Exploration of ophthalmologists' attitudes on diagnostic and therapeutic management of presbyopia is essential for the development…
- Trial name
- NCT04733014
- Where
- Greece
- Volunteers
- 200 people
- Sponsor
- Democritus University of Thrace
Myopia
Delaying the Onset of Nearsightedness Until Treatment (DONUT) Clinical Trial
The aims of this clinical trial will test whether or not the onset of nearsightedness is delayed in a group of children randomized to nightly drops in 0.05% atropine in both eyes, in comparison to children who receiving nightly…
- Trial name
- DONUT (NCT07567040)
- Testing
- Atropine Sulfate 0.05% Oph Soln
- Where
- 13 sites in United States
- Volunteers
- 664 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Cognition Disorders
Impact of Glasses for Vision Problems on Cognitive Function in Rural Older Adults
The aim of this project is to explore whether vision correction can effectively slow cognitive decline in older adults. The primary question it seeks to answer is: Can providing free near and/or distance vision correction glasses…
- Trial name
- CLEVER (NCT06836440)
- Testing
- Free Prescription Glasses
- Where
- China
- Volunteers
- 964 people, healthy volunteers welcome
- Sponsor
- Yuju Wu
Presbyopia, Refractive Error
Dispensing Study to Assess Visual Performance of Prototype Contact Lenses
The aim of this study is to assess visual performance of prototype soft contact lens designs compared to commercially available contact lenses over one-week of lens wear.
- Trial name
- NCT02214797
- Testing
- Etafilcon A, Lotrafilcon B , Senofilcon A
- Where
- Australia
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Brien Holden Vision
Myopia, Astigmatism
On-Eye Evaluation of Contact Lens Axis Location
The purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2…
- Conditions
- Myopia, Astigmatism, Refractive Error
- Trial name
- NCT02100410
- Testing
- Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2, Delefilcon A toric contact lens T3
- Volunteers
- 50 people
- Sponsor
- Alcon Research
Myopia
Clinical Evaluation of an Investigational Soft Contact Lens
The purpose of this 4-week dispensing trial is to evaluate and compare an investigational soft contact lens worn on a daily disposable basis with three other soft contact lenses also worn on a daily disposable basis.
- Trial name
- NCT01254747
- Testing
- Delefilcon A contact lens, Lotrafilcon B contact lens (O2 OPTIX, AIR OPTIX), Nelfilcon A contact lens (DAILIES AquaComfort Plus)
- Where
- 2 sites in United States, Germany
- Volunteers
- 130 people
- Sponsor
- CIBA VISION
Astigmatism, High Myopia
Comparison Between TICL and ICL+AK for High Myopic Astigmatism
To compare the outcomes of a toric Implantable Collamer Lens (ICL) and a spherical Implantable Collamer Lens combined with astigmatic keratotomy (AK) in the correction of high myopic astigmatism.
- Trial name
- NCT03202485
- Testing
- Toric Implantable Collamer Lens, ICL + Astigmatic keratotomy
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Dry Eye Disease
Assess the Effects of Spectacles or Orthokeratology on Dry Eye Parameters in Children and Adolescents.
Orthokeratology(OK) is currently one of the effective methods for treating myopia, reshaping the corneal epithelium to change refractive power.
- Trial name
- NCT06023108
- Testing
- Orthokeratology, Spectacles
- Where
- China
- Volunteers
- 300 people
- Sponsor
- He Eye Hospital
Aphakia, Presbyopia
Contralateral Claims Study of Clareon Vivity Pro
The purpose of this study is to test new versions of Clareon Vivity Pro intraocular lenses (IOLs) by comparing them to currently marketed IOLs.
- Trial name
- NCT07484191
- Testing
- Clareon Vivity Pro IOL, Clareon Vivity IOL, TECNIS PureSee IOL
- Where
- 7 sites in Australia
- Volunteers
- 165 people
- Sponsor
- Alcon Research
Hyperopia
Pilot Dispensing Evaluation of a Plus Power Lens
The purpose of this study is to compare the performance of the ACUVUE® ADVANCE® Plus lenses against ACUVUE® ADVANCE® lenses in the plus power parameters.
- Trial name
- NCT01228591
- Testing
- Acuvue Advance Plus, Acuvue Advance
- Where
- 3 sites in United States
- Volunteers
- 38 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Cataracts, Presbyopia
Clinical Evaluation of the Lenstec SBL-3 Multifocal Intraocular Lens
The purpose of this study is to evaluate the safety and performance of the SBL-3 intraocular lens.
- Trial name
- NCT02487160
- Testing
- SBL-3 multifocal intraocular lens, Control monofocal intraocular lens
- Where
- 13 sites in United States
- Volunteers
- 499 people, healthy volunteers welcome
- Sponsor
- Lenstec Incorporated
Myopia
A Clinical Study to Evaluate the Remote Monitoring of Myopia Patients With the EyeQue Insight
The objective of this study is to determine whether the remote monitoring of myopia patients with the EyeQue Insight (visual acuity test) can replace regularly scheduled follow-up visits.
- Trial name
- NCT04693260
- Testing
- Visual Acuity with a Hand-held Device Supported by Mobile App.
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Myopia, Keratoconus
Assessment of Corneal Biomechanical Properties Using Corvis ST and ECD Following LASIK, PRK, CXL, Veriflex IOL and Implantable Collamer Lens
To evaluate corneal biomechanical changes using the Corvis ST and ECD in patients who have under-gone LASIK, PRK, corneal cross-linking (CXL), Veriflex IOL and ICL.
- Conditions
- Myopia, Keratoconus, Refractive Surgery
- Trial name
- NCT06818461
- Testing
- Corvis St Before and after lasik, PRK, CXL, Veriflex IOL and ICL
- Where
- Egypt
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Beni-Suef University
Cataract, Presbyopia
Non-comparative Study to Assess the Visual Performances and Safety of a Progressive Multifocal Intraocular Lens
This is an interventional, non-controlled, multicenter international trial with a prospective design on one cohort of patients.
- Trial name
- PSM15 (NCT02838004)
- Testing
- IOL MINI WELL READY
- Where
- Germany
- Volunteers
- 77 people
- Sponsor
- SIFI SpA
Presbyopia, IOL, Cataract
Evaluation of the Visual Acuity Curves of an Enhanced Monofocal Intraocular Lens
The primary objective of this study is to evaluate postoperative visual acuity curves in pseudophakic patients following unilateral or bilateral implantation of the enhanced monofocal TECNIS Eyhance IOL, using the DDARTVC.
- Trial name
- IOL-VAC (NCT07439835)
- Testing
- Phacoemulsification with enhanced monofocal IOLs
- Where
- Greece
- Volunteers
- 62 people
- Sponsor
- Democritus University of Thrace
Anisometropic Amblyopia, Accommodation Disorder
Accommodation Response in Hypermetropic Anisometropia (ARIHA Study)
Anisometropic amblyopia is when one eye has a much stronger glasses prescription than the other, causing poor vision in one eye, even with glasses, because the brain favours the better-seeing eye.
- Trial name
- ARIHA (NCT06286410)
- Testing
- Bespoke glasses prescription worn during amblyopia treatment.
- Where
- United Kingdom
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Sheffield
Astigmatism
Toric Contact Lens Digital Performance and Comfort Study
This study seeks to quantify digital visual performance and subjective visual acceptance of toric contact lenses as compared to spherical lenses in low to moderate astigmatic patients.
- Trial name
- NCT04772560
- Testing
- Precision1 for Astigmatism, Precision1 Sphere
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Kathryn Richdale
Primary Pterygium, Astigmatism
Preoperative and Postoperative Refractive and Topographic Evaluation in Patients With Primary Pterygium: Comparison of Two Surgical Techniques
This study evaluated changes in refractive status and corneal topography before and after surgical treatment of primary pterygium.
- Trial name
- RETOP (NCT07742995)
- Testing
- Conjunctival Autograft, Amniotic Membrane Transplantation
- Volunteers
- 78 people
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana