Clinical trials: Refractive Error - Myopia
Presbyopia, Myopia
Clinical Investigation iDesign System With 1.3-PRESBY Treatment and STAR S4 IR™ Excimer Laser System
A prospective study to evaluate the feasibility of a new treatment algorithm to increase depth of focus after wavefront-guided LASIK correction of myopic refractive errors with the iDesign Advanced Wavescan Studio™ System and…
- Trial name
- NCT02806726
- Testing
- iDesign 1.3-PRESBY treatment, iDesign 1.3 treatment
- Volunteers
- 42 people
- Sponsor
- Abbott Medical Optics
Myopia
A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)
The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery.
- Trial name
- NCT00413868
- Testing
- LASIK, PRK, Small target contrast sensitivity and disability glare
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Myopia
Dehydration of Stenfilcon A Contact Lenses Versus Delefilcon A Contact Lenses
The study will explore in vivo lens dehydration rates across a 12hr wear period for the study lenses.
- Trial name
- NCT02366923
- Testing
- stenfilcon A, delefilcon A
- Where
- Canada
- Volunteers
- 28 people
- Sponsor
- CooperVision, Inc.
Myopia
the Efficacy of 0.01% Atropine for Near Work-induced Transient Myopia and Myopic Progression
Near work-induced transient myopia (NITM) is an important factor in permanent myopia (PM) development and progression. Atropine eye drop is beneficial in reducing initial NITM and slowing down myopic progression.Participants were…
- Trial name
- NCT06034366
- Testing
- 0.01% atropine, 0.9% sodium chloride
- Where
- 2 sites in China
- Volunteers
- 150 people
- Sponsor
- He Eye Hospital
Myopia, Hyperopia
Evaluation of Silicone Hydrogel Daily Wear Contact Lenses for Up to One (1) Month of Daily Wear
The aim of the study is to evaluate if the performance of Invigor A is substantially equivalent to Invigor B contact lenses when used in a one month recommended replacement, daily wear modality.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT03722784
- Testing
- Invigor A (test), Invigor B (control)
- Where
- 6 sites in United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Topography-Guided Customized PRK Versus Q-value Adjusted PRK in Correction of Myopia With or Without Astigmatism
This study will include patients who will undergo PRK in both eyes, for each patient each eye will be randomly allocated to one of 2 procedures: topography-guided ablation in one eye (group I) and Q-factor customized ablation in…
- Trial name
- NCT03291873
- Testing
- PRK
- Where
- 2 sites in Egypt
- Volunteers
- 104 people
- Sponsor
- Kasr El Aini Hospital
Nearsightedness, Farsightedness
An Evaluation of LASIK, SMILE and PRK Surgery in Physicians
The principle investigator is evaluating self-reported quality of vision and quality of life in physicians undergoing LASIK, SMILE and PRK surgery.
- Conditions
- Nearsightedness, Farsightedness, Astigmatism
- Trial name
- NCT02576483
- Testing
- Questionnaire (QoV questionnaire)
- Where
- United States
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- Stanford University
Myopia
Clinical Evaluation of the Vedera KXS for the Treatment of Spherical Myopia
The objective of this clinical investigation is to evaluate the safety and efficacy of the Vedera KXS in sighted eyes for the correction of spherical myopia.
- Trial name
- NCT00925041
- Testing
- Vedera KXS
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Glaukos Corporation
Myopia
Clinical Evaluation of the Safety and Efficacy of Yung Sheng 55 % Color Contact Lens
This was a single group, open-label clinical study to assess the safety and efficacy of Yung Sheng 55% Color Contact Lens for vision correction.
- Trial name
- NCT06128486
- Testing
- Soft Contact Lens
- Volunteers
- 62 people
- Sponsor
- Yung Sheng Optical Co., Ltd.
Myopia
The Different Design of Orthokeratology
In this study, we intend to enroll orthokeratology subjects aged 8-18 years old with binocular myopia up to and including -4.00 D.
- Trial name
- NCT05956704
- Testing
- Orthokeratology with aspheric wide inversion zone design in the optical zone, Orthokeratology with traditional spherical design in the optical zone
- Where
- China
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Refractive Errors, Myopia
Clinical Comparison of 2 Daily Disposable Contact Lenses - Pilot Study 1
The primary objective of this study is to evaluate the overall performance of PRECISION1 contact lenses when compared to Biotrue ONEday contact lenses.
- Trial name
- NCT04527978
- Testing
- Verofilcon A contact lenses, Nesofilcon A contact lenses
- Where
- 4 sites in United States
- Volunteers
- 56 people
- Sponsor
- Alcon Research
Myopia, Outdoor Activity
Vision Care Intervention for Lower Grade School Children in Taiwan
The purpose of this study is making use of school policy- recess outside classroom (ROC7-11) for increasing the time spent outdoor during recess and encouraging children spent time outdoor up to 11 hours in each week to…
- Conditions
- Myopia, Outdoor Activity, Policy of Recess Outside Classroom
- Trial name
- NCT02082743
- Testing
- Outdoor activity in recess time
- Where
- Taiwan
- Volunteers
- 1,020 people
- Sponsor
- Chang Gung Memorial Hospital
Myopia
Subjective Evaluation of a Commercially Marketed Contact Lens Amongst a Subset of the Contact Lens Wearing Population
The purpose of this study is to compare the performance of commercially marketed contact lenses to habitual contact lenses in a selected segment of the contact lens wearing population.
- Trial name
- NCT01007916
- Testing
- Lotrafilcon B contact lens, Habitual contact lens
- Volunteers
- 50 people
- Sponsor
- CIBA VISION
Myopia, Myopia; Refractive Error
Efficacy and Visual Quality of Orthokeratology Lenses With Different Designs
Orthokeratology (ortho-k) lens is very effective in slowing down axial elongation in myopic children by 30% to 63% when compared to children wearing single-vision spectacles or contact lenses.
- Trial name
- NCT06825585
- Testing
- Orthokeratology with 5.0mm back optical zone diameter, Orthokeratology with a 6.2 mm back optical zone diameter
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Xiaoyan Yang
Myopia
Evaluation of DW Silicone Hydrogel Lens Compared to DW Silicone Hydrogel Lens
The purpose of this study is to evaluate the performance of the investigational CooperVision silicone hydrogel lens compared to a currently-marketed silicone hydrogel contact lens up to 30 days of daily lens wear.
- Trial name
- NCT01386008
- Testing
- senfilcon A contact lens, investigational enfilcon A
- Where
- 2 sites in United States, United Kingdom
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Study of ACUVUE® ADVANCE® PLUS Contact Lenses.
The purpose of this study is to compare ACUVUE® ADVANCE® Plus contact lenses made prior to process qualification (prePQ) against the ACUVUE® ADVANCE® Plus lenses made after the process qualification (postPQ).
- Trial name
- NCT01244893
- Testing
- Acuvue Advance Plus prePQ, Acuvue Advance Plus postPQ
- Where
- 3 sites in United States
- Volunteers
- 44 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia, Progressive, Children, Only
Eleven Years of Menicon Z Night Contact Lens Wear in Reducing Myopia Progression in Children
To compare axial length growth of white European myopic children wearing Menicon Z Night orthokeratology contact lenses to a control group of distance, single-vision glasses and contact lenses over an 11-year period.
- Trial name
- MCOS11 (NCT04806711)
- Testing
- Menicon Z Night, Control
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Menicon Co., Ltd.
Myopia, Esophoria
Bifocal Soft Contact Lenses and Their Effect on Myopia Progression in Children and Adolescents.
The purpose of this study is to determine whether bifocal soft contact lenses are effective in controlling the progression of myopia in children and adolescents that exhibit a tendency to excessively cross their eyes while…
- Conditions
- Myopia, Esophoria, Fixation Disparity
- Trial name
- NCT00214487
- Testing
- Bifocal Contact Lenses
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Aller, Thomas A., OD
Myopia
Comparison of Hand Eye Coordination and Sports Vision Performance in Dual-Focus Multifocal Contact Lenses and Habitual Contact Lenses
The purpose of the study is to compare the hand-eye coordination and sports vision performance in participants while they are wearing their habitual contact lenses versus while wearing the dual-focus multifocal contact lenses.
- Trial name
- NCT07840209
- Testing
- Multifocal Contact Lens
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Ohio State University
Near Vision
Pharmacological Treatment of Presbyopia
In this clinical trial, a total of 75 presbyopic patients in the age range of 40 to 60 years old will be participated. The right eyes of 45 patients will be treated by Biocarpine® and they will be considered as the case group…
- Trial name
- NCT05564832
- Testing
- Pilocarpine 1.25% Eye drop
- Where
- Iran
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
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