Clinical trials: Eye--Refractive Errors
Cataract, Astigmatism
Comparisons of the Astigmatic Power of Toric Intraocular Lens Using Three Toric Calculators: AcrySof, TECNIS, and iTrace Toric Calculator
Purpose of this study is to compare the astigmatic power of the toric IOL obtained from the AcrySof toric calculator, TECNIS toric calculator, and iTrace toric calculator in a group of patients with preoperative with-the-rule…
- Trial name
- NCT01978106
- Where
- South Korea
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Cycloplegia
Cycloplegic Refraction Among Children
The primary outcome of this study is to compare cyclopentolate 1% and tropicamide 1% for cycloplegic refractions in pediatric populations.
- Trial name
- NCT05442801
- Testing
- Cyclopentolate, Tropicamide
- Where
- Jordan
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Islamic Hospital, Jordan
Refractive Errors
Apioc Toric/Spherical Single Vision Contact Lens
The Lentechs Apioc-S and Apioc-A contact lenses are made in an FDA-approved contact lens material indicated for single-vision and astigmatism.
- Trial name
- NCT03970512
- Testing
- Apioc-A and Apioc-S Contact Lenses
- Where
- 2 sites in United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Lentechs, LLC
Presbyopia, Myopia
Intrastromal Correction of Ametropia by a Femtosecond Laser
This study evaluates the intrastromal correction of ametropia with a femtosecond laser made by 20/10 PERFECT VISION. This laser generates a beam of ultrashort, infrared pulses which enables very precise cuts in the cornea.
- Conditions
- Presbyopia, Myopia, Hyperopia, Astigmatism
- Trial name
- ISCAF (NCT00928122)
- Testing
- Intrastromal Correction of Presbyopia, Intrastromal correction of Myopia, Intrastromal Correction of Hyperopia
- Where
- 3 sites in Germany
- Volunteers
- 200 people
- Sponsor
- 20/10 Perfect Vision
Refractive Errors, Visual Impairment
Trial of an Educational Intervention to Promote Spectacle Use Among Secondary School Children in Islamabad, Pakistan
This study is planned to test an educational intervention promoting the use of spectacles among secondary school children. It is based on the hypothesis that educating teachers, parents and children about the importance of…
- Trial name
- NCT03670303
- Testing
- Educational intervention
- Where
- 8 sites in Pakistan
- Volunteers
- 240 people
- Sponsor
- Isra University
Myopia
Myopia Control Efficacy of Second-generation DIMS Spectacle Lenses on Fast Progressing Myopes - Auxiliary Group
The purpose of this study is to examine the efficacy and performance of the Defocus Incorporated Multiple Segments (DIMS) and a variant of DIMS (D2) spectacle lenses on controlling myopia progression in fast progressing myopic…
- Trial name
- NCT05888805
- Testing
- DIMS spectacle lens
- Where
- Hong Kong
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Hyperopia
APIOC Sphere and APIOC Astigmatism
Vision and comfort, both objective and subjective, will be assessed for single vision contact lens wearers for either the APIOC™ Sphere or the APIOC™ Astigmatism contact lenses.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT04806802
- Testing
- APIOC Sphere and APIOC Astigmatism
- Where
- 6 sites in United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Lentechs, LLC
Myopia
Myopia Control Using Bright Light Therapy, Myopic Defocus and Atropine
The purpose of the study is to investigate the effect of bright light therapy, myopic defocus, atropine and the combination in myopia control in schoolchildren.
- Trial name
- NCT04923841
- Testing
- High intensity light box for bright light therapy and single vision spectacle lenses, High intensity light box for bright light therapy and Defocus Incorporated Multiple Segments (DIMS) spectacle lenses, High intensity light box for bright light therapy and atropine 0.01% eye drop and and single vision spectacle lenses
- Where
- Hong Kong
- Volunteers
- 577 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Astigmatism
Clinical Evaluation of Two Toric Soft Contact Lenses
The aim of this study is to compare the short-term clinical performance of two toric contact lenses.
- Trial name
- NCT06490302
- Testing
- Lens A (ocufilcon D), Lens B (fanfilcon A)
- Where
- Mexico
- Volunteers
- 40 people
- Sponsor
- CooperVision, Inc.
Error, Refractive
Comparative Study in Measuring Anterior Chamber Depth
Measuring parameters of anterior segment of the eye accurately is important for diagnosing variety of diseases and for cataract surgeries, glaucoma, refractive surgeries and post-operative follow-up.
- Trial name
- NCT04816266
- Testing
- Iol master, Pentacam
- Volunteers
- 50 people
- Sponsor
- Assiut University
Myopia
Evaluation of the Performance of AIR OPTIX® COLORS
The purpose of this study was to assess the ocular response to and performance of the cosmetically printed silicone hydrogel contact lens AIR OPTIX® COLORS compared to FRESHLOOK® COLORBLENDS.
- Trial name
- NCT01338402
- Testing
- Lotrafilcon B contact lens, Lotrafilcon B contact lens with color, Phemfilcon A contact lens with color
- Where
- Canada
- Volunteers
- 47 people
- Sponsor
- CIBA VISION
Myopia
A Study to Evaluate the Safety and Efficacy of Eye Secret UV Aspheric Silicone Soft (Hydrophilic) 1Day Color Contact Lens
This was a prospective, randomized, open label, parallel, active-controlled clinical study to assess the safety and efficacy of Silicone Color Contact Lens for vision correction.
- Trial name
- NCT06527586
- Testing
- soft contact lens
- Where
- 3 sites in Taiwan
- Volunteers
- 131 people
- Sponsor
- Yung Sheng Optical Co., Ltd.
Cataract, Presbyopia
Non-Inferiority Study Comparing MINI WELL READY® and FineVision® in Patients With Cataract Surgery
Interventional, Multicentre, controlled, randomized, single blind, twoarmed non-inferiority trial
- Trial name
- NCT03060954
- Testing
- MINI WELL READY ®, FINE VISION®
- Where
- 2 sites in France
- Volunteers
- 8 people
- Sponsor
- SIFI SpA
Myopia
Effectiveness of 0.01% Atropine Sulfate Solution in Controlling of Myopia Progression in Children
Increasing number of myopic children and significant complications of high myopia enhance the necessity of effective control strategy.
- Trial name
- NCT04338373
- Testing
- 0.01% Atropine sulfate solution in "Comfort Drops" ("AVIZOR S.A.", Spain)
- Where
- Russia
- Volunteers
- 70 people
- Sponsor
- The V.P. Vyhodcev Eye Hospital
Astigmatism
Astigmatism Management in Cataract Surgery With the AcrySof Toric Intraocular Lens
The purpose of this study is to determine if Toric intraocular lens implantation in cataract surgery is a more efficient and cost-effective treatment of astigmatism than Monofocal intraocular lens implantation.
- Trial name
- NCT01075542
- Testing
- AcrySof Toric intraocular lens, model SN60TT, AcrySof Monofocal IOL, model SN60AT
- Where
- 3 sites in Netherlands
- Volunteers
- 86 people
- Sponsor
- Maastricht University Medical Center
Myopia
An Investigation of Topical Ophthalmic Low-Dose Atropine on Pupil Size and Accommodation
The goal of this clinical study is to learn about the short-term physiological effects of low-dose atropine in healthy volunteers.
- Trial name
- NCT07674966
- Testing
- Atropine 0.01% Ophthalmic Solution, Atropine 0.02% Ophthalmic Solution, Atropine 0.05% Ophthalmic Solution
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- University of California, Berkeley
Myopia, Ametropia
Clinical Evaluation of the Safety and Efficacy of a New Multifocal Contact Lens
The purpose of this study was to demonstrate substantial equivalence of the new DAILIES® AquaComfort Plus® Multifocal (DACP MF) contact lens to the commercially available Focus® DAILIES® Progressives (FDP) contact lens.
- Conditions
- Myopia, Ametropia, Presbyopia, Refractive Error
- Trial name
- NCT01797783
- Testing
- Nelfilcon A multifocal contact lens with comfort additive, Nelfilcon A multifocal contact lens
- Volunteers
- 83 people
- Sponsor
- Alcon Research
Myopia, Accommodation
Dynamic Change in Accommodation After Wearing Multifocal Soft Contact Lenses for Myopia Control
The purpose of this study is to report the changes in accommodation, aberrations, and myopia in patients wearing multifocal soft contact lens for various durations. The study objectives are to: 1.
- Trial name
- NCT04763694
- Testing
- Multifocal soft contact lenses
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Myopia
Sustained Effect of Red-light Therapy for Myopia Control: A 2-Year Post-Trial Follow-up Study
To evaluate the long-term efficacy and safety of red-light therapy for myopia control over 2 years, and the potential rebound effect after treatment cessation.
- Trial name
- NCT06232161
- Testing
- Red-light therapy device, Spectacles
- Where
- China
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Myopia
A 6-Hour Clinical Evaluation of New Daily-Wear Soft Contact Lenses
The purpose of this study is to validate the clinical performance of a new contact lens design when worn over a period of 6 hours compared to nelfilcon A (control).
- Trial name
- NCT03235089
- Testing
- Test Lens, Control Lens
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- CooperVision, Inc.
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