Clinical trials: Error, Refractive
Myopia
Dispensing Evaluation of Printed Etafilcon A With Polyvinylpyrrolidone (PVP)
The purpose of this study is to evaluate the lens fit (mechanical and cosmetic lens fit) of the printed etafilcon A with polyvinylpyrrolidone (PVP).
- Trial name
- NCT01180777
- Testing
- etafilcon A (A), etafilcon A (B), etafilcon A (C)
- Where
- 6 sites in United States
- Volunteers
- 95 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Presbyopia, Cataract
Feasibility Study of Laser Treatment of the Crystalline Lens to Correct Presbyopia
The study will evaluate whether the LensAR laser system can be used in the lens of the eye to increase the ability to read and/or see near objects
- Trial name
- NCT01062412
- Testing
- LensAR Laser System
- Where
- Philippines
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- LensAR Incorporated
Myopia and Hyperopia and Presbyopia
Evaluation of Product Performance of a New Silicone Hydrogel Multifocal Contact Lens
The objective of this study is to evaluate the product performance of a new silicone hydrogel daily disposable multifocal contact lens, the Bausch + Lomb (kalifilcon A) Daily Disposable Multifocal Contact Lens, when worn by…
- Trial name
- NCT05660577
- Testing
- new silicone hydrogel daily disposable multifocal contact lens, the Bausch + Lomb (kalifilcon A) Daily Disposable Multifocal Contact Lens
- Where
- 20 sites in United States
- Volunteers
- 301 people
- Sponsor
- Bausch & Lomb Incorporated
Presbyopia, Pseudophakia
Pilocarpine and Brimonidine in Patients With Monofocal Lenses
The current study aims to assess the use of pilocarpine and brimonidine to improve near visual acuity in patietns with monofocal intraocular lenses.
- Trial name
- NCT03825081
- Testing
- Brimonidine, pilocarpine
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary
Refractive Errors
PAVES Benchmarking Pilot Study of Daily Disposable Contact Lenses
The study will compare the short-term clinical performance and wearer and practitioner acceptability in a pilot study of a new-to-market spherical silicone hydrogel daily disposable soft contact lens (SiHyDD) to three (3)…
- Trial name
- PAVES (NCT04032457)
- Testing
- Phase A - olifilcon B with Tangible Coatings, Phase B - etafilcon A with Tangible Coatings
- Where
- 6 sites in United States
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- Vision Service Plan
Amblyopia, Anisometropia
The Effect of Light Deprivation on Visual Functions in Adult Amblyopes
Amblyopia is a significant health problem, affecting up to 4% of the population in the United States. Amblyopia, commonly known as "lazy eye," is a developmental visual disorder in which one or both eyes suffer from poor vision…
- Conditions
- Amblyopia, Anisometropia, Visual Impairment
- Trial name
- NCT02799836
- Testing
- Blindfold
- Sponsor
- Boston Children's Hospital
Presbyopia
A Study of Safety and Efficacy of UNR844 Chloride (UNR844-Cl) Eye Drops in Subjects With Presbyopia.
The purpose of this study was to assess the effect of topical UNR844-Cl (lipoic acid choline ester chloride) ophthalmic solution on near visual function in presbyopic subjects.
- Trial name
- NCT03809611
- Testing
- UNR844-Cl
- Where
- 14 sites in United States
- Volunteers
- 125 people
- Sponsor
- Novartis Pharmaceuticals
Binocular Vision Disorder, Refractive Errors
Binocular Vision Anomalies After Cataract and Refractive Surgery
There are indications in the literature that binocular vision disorders may occur after cataract and corneal refractive surgery.
- Conditions
- Binocular Vision Disorder, Refractive Errors, Cataract
- Trial name
- NCT03592615
- Testing
- cataract surgery, Corneal refractive surgery
- Where
- United States
- Volunteers
- 51 people
- Sponsor
- Salus University
Myopia
Validation of the Utility of Myopia Intelligent Diagnostic System
The screening of myopia via artificial intelligence represents an challenge in computational medicine. Here, the investigators use "deep learning" to create an automatic diagnostic system for myopia screening using ocular…
- Trial name
- NCT04014725
- Testing
- Myopia Intelligent Diagnostic System
- Volunteers
- 50 people
- Sponsor
- Sun Yat-sen University
Myopia
Comparative Study of SMILE, ICL, and Wavelight Plus Alcon Technologies in Myopia Correction
Myopia is a prevalent refractive error with significant lifestyle impact. While traditional SMILE (Small Incision Lenticule Extraction) and ICL (Implantable Collamer Lens) surgeries are standard options, the advent of the…
- Trial name
- NCT06788418
- Testing
- Wavelight Plus Alcon system, SMILE, ICL
- Where
- 2 sites in China
- Volunteers
- 1,000 people
- Sponsor
- Beijing Visionly Plus Eye Hospital
Myopia
Evaluating Contact Lens Optics
This study will evaluate changes in refractive error and visual performance between a single vision soft contact lens and multifocal soft contact lens
- Trial name
- NCT05028790
- Testing
- Single vision contact lens, Multifocal contact lens
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- David A Berntsen, OD PhD
Myopia, Conjunctivitis
Zanzibar Arts for Children's Eyesight Pilot Trial
In Zanzibar, around 22,000 children (4% of those aged 6 to 12) need treatment for eye issues like conjunctivitis or require glasses. A 2017 study found that 42% of rural children needing glasses didn't have them.
- Conditions
- Myopia, Conjunctivitis, Hyperopia
- Trial name
- ZANZI-ACEII (NCT06469697)
- Testing
- School music broadcast, Community music broadcast
- Where
- Tanzania
- Volunteers
- 1,295 people
- Sponsor
- Queen's University, Belfast
Presbyopia
CorVision® 4-year Follow-up
The objective of the study is to assess the long-term safety and effectiveness of the CorVision® microlens implanted in presbyopic patients for the management of management of presbyopia and near vision impairment.
- Trial name
- CorVision4yFU (NCT07623720)
- Where
- Czechia
- Volunteers
- 95 people
- Sponsor
- Gemini Eye Clinic
Refractive Errors
Efficacy and Safety of Astaxanthin in Volunteer With Refraction Errors
This study will investigate efficacy and safety of astaxanthin in 180 volunteers with refraction errors. Visual test, skin test, liver function test, renal function test, and adverse event will be evaluated before and after…
- Trial name
- NCT05009810
- Testing
- astaxanthin 4 mg, astaxanthin 6 mg
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Chulalongkorn University
Myopia, Refractive Error
Comparative Study of Cycloplegic Refraction and Subjective Refraction With Fogging in School Age Children
A thorough ophthalmic examination of a child must include a refraction and this is often done with cycloplegia. In our study, we aim to determine at which age group a non-cycloplegic refraction technique closely correlates with a…
- Trial name
- NCT00347347
- Where
- Singapore
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Age Related Cataracts, Astigmatism
Rotation of Hydrophobic Acrylic Lenses - Rayner RA0800C & Alcon Clareon & Hoya Nanex & Hoya Vivinex XY1-EM & RayOne EMV Toric & PODEYE Toric
The investigational devices are approved intraocular lenses (IOL) intended to be implanted after phacoemulsification in individuals suffering from age-related cataract with the need of cataract surgery.
- Trial name
- NCT03803852
- Testing
- Intraocular Lens Implantation
- Where
- Austria
- Volunteers
- 750 people
- Sponsor
- Medical University of Vienna
Myopia, Hyperopia
Comparison of Acular LS Versus Nevanac for Pain Control in Eyes Undergoing PRK
To determine the ability of two topical Nonsteroidal Anti-inflammatory drops (Acular LS \& Nevanac) to help control pain following Photorefractive Keratectomy (PRK).
- Trial name
- NCT00347204
- Testing
- ketorolac (Acular LS), Nepafenac (Nevanac)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Center For Excellence In Eye Care
Refractive Errors
Trifocal Diffractive Intraocular Lens After Cataract Extraction With Phacoemulsification
Multifocal IOLs that maintain distance focus and improve near vision have been developed to reduce spectacle dependence.Multifocal IOLs improve patient performance of near-vision tasks, such as reading crafts, hobbies, and social…
- Trial name
- NCT04465279
- Testing
- Trifocal diffractive intraocular lens
- Where
- Egypt
- Volunteers
- 36 people
- Sponsor
- Alexandria University
Cataract, Presbyopia
Clinical Investigation of the Visual Outcomes and Safety of a Trifocal Intraocular Lens (IOL) in a Korean Population
The purpose of this study is to confirm the effectiveness of the investigational lens in a Korean population, especially for visual performance, quality of vision, and subject satisfaction with the visual outcome, as well as the…
- Trial name
- NCT03268746
- Testing
- AcrySof IQ PanOptix Multifocal IOL
- Where
- 4 sites in South Korea
- Volunteers
- 52 people
- Sponsor
- Alcon Research
Refractive Error Correction
Clinical Evaluation of Etafilcon A Contact Lenses Using a Novel Molding Process
This study is a multi-site, group sequential, adaptive, randomized, double-masked, 2×2 crossover design, 1-week dispensing study.
- Trial name
- NCT03605303
- Testing
- Test/Control, Control/Test
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
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