Clinical trials: Refractive Disorders, open to volunteers
Myopia, Juvenile Myopia
Efficacy in Controlling Myopia in Young Children Using a Novel Spectacle Lens
This is a conventional efficacy trial to validate the results from previous clinical trials for younger children; the 12-month efficacy results will be used to predict the 3-year treatment efficacy.
- Conditions
- Myopia, Juvenile Myopia, Myopia Progression
- Trial name
- EUCALYPTUS (NCT06034327)
- Testing
- Single vision, impact-resistant spectacle lenses; Test Arm, Single vision, impact-resistant spectacle lenses; Control Arm
- Where
- 14 sites in United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Myopia
Association of Genetic Variants With Myopia
This study aims to identify genetic factors linked to myopia, including those that influence a person's risk of developing it and how quickly it progresses (like changes in eye length).
- Trial name
- NCT07030153
- Testing
- Oral swab DNA analyzed for myopia-related gene variants
- Where
- 2 sites in China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Beijing Visionly Plus Eye Hospital
Myopia, Light; Therapy, Complications
Optimizing Light Exposure for Myopia Prevention and Control (LightSPAN)
The goal of this clinical trial is to evaluate whether the optimization of daily exposure to light in primary school children can lead to better myopia prevention and control.
- Conditions
- Myopia, Light; Therapy, Complications, Myopia Progression, Short-Sighted
- Trial name
- LightSPAN (NCT06631339)
- Testing
- Light Intervention, Digital Intervention, Control Group
- Where
- 5 sites in Singapore
- Volunteers
- 396 people, healthy volunteers welcome
- Sponsor
- National University of Singapore
Astigmatism
Application of Phototherapeutic Keratectomy Mode to Mark the Axis of Astigmatism
Corneal refractive surgery is an effective way to correct refractive error. Modern corneal refractive surgery for the correction of myopia or hyperopia can achieve or close to the expected goal, but to eliminate astigmatism is…
- Trial name
- NCT06694051
- Testing
- marking
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia, Cost-effectiveness Analysis
Comparing Myopia Treatments in Youth: Defocus Spectacles, Glasses, and Ortho-K
The research project titled "A Comparative Study on the Clinical Efficacy, Quality of Life, and Cost of Use of Peripheral Defocus Spectacles, Frame Glasses, and Orthokeratology Lenses in Myopic Children and Adolescents" aims to…
- Conditions
- Myopia, Cost-effectiveness Analysis, Quality of Life
- Trial name
- NCT06278974
- Where
- China
- Volunteers
- 90 people
- Sponsor
- He Eye Hospital
Myopia, Environment
Environmental Factors and Myopia Prevalence Among Uyghur Students in Remote China
Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results.
- Trial name
- NCT07119723
- Where
- China
- Volunteers
- 100,000 people, healthy volunteers welcome
- Sponsor
- Tianjin Medical University Eye Hospital
Myopia, Physical Fitness
Influence of Strength Training on Myopia Care in Kindergarten Children
With the advancement of technology and changes in lifestyle, the physical activity levels of modern children have gradually decreased.
- Conditions
- Myopia, Physical Fitness, Muscle Strength
- Trial name
- NCT07121049
- Testing
- Strength training
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Hungkuang University
Myopia
Myopia Control Using Novel Soft Contact Lenses
The goal of this study is to investigate the myopic control efficacy of two study soft contact lenses in children. Participants will be prescribed Lens A, Lens B or single vision contact lenses for the first year.
- Trial name
- NCT07547085
- Testing
- Lens A, Lens B
- Where
- Hong Kong
- Volunteers
- 126 people
- Sponsor
- The Hong Kong Polytechnic University
Visual Correction, Refractive Surgery
Outcomes of Cataract & Refractive Procedures
The primary objective of the database is to retrospectively analyse the visual and refractive outcomes of cataract and refractive procedures in order to continuously assess outcomes and also compare outcomes between the different…
- Conditions
- Visual Correction, Refractive Surgery, Cataract Surgery
- Trial name
- NCT07481487
- Where
- United Kingdom
- Volunteers
- 150 people
- Sponsor
- Vision Care Collective Limited
Myopia, Myopia Progression
The Effectiveness and Safety of Two Low-concentration Atropine Sulfate Eye Drops (0.01%/0.02%) for Delaying the Pediatric Myopia Progression
The clinical trial aims to test the effectiveness and safety of two low-dose atropine sulfate eye drops for delaying myopia progression in children and adolescents.
- Trial name
- NCT06708156
- Testing
- Atropine sulfate eye drops 0.01%, Atropine sulfate eye drops 0.02%
- Where
- 25 sites in China
- Volunteers
- 606 people
- Sponsor
- Oupushifang Pharmaceutical Technology Co., Ltd.
Cataract, Refractive Error
Community-Based Eye Screening With Structured Referral Tracking for Preventing Avoidable Blindness in Adults in Rawalpindi, Pakistan
This cluster randomized controlled trial aims to evaluate the effectiveness of a Structured Referral Tracking (SRT) intervention in improving referral completion among adults identified with avoidable blindness during…
- Conditions
- Cataract, Refractive Error, Diabetic Retinopathy
- Trial name
- SIGHT (NCT07611682)
- Testing
- Structured Referral Tracking (SRT)
- Where
- Pakistan
- Volunteers
- 500 people
- Sponsor
- Health Services Academy, Islamabad, Pakistan
Refractive Errors
Cohort Study on Refractive Errors in Preschool Children
Refractive error is a common visual disorder encompassing myopia, hyperopia, astigmatism and other subtypes. Refractive error in preschool children refers to refractive abnormalities occurring during the preschool period (0-6…
- Trial name
- PREC (NCT07706218)
- Where
- China
- Volunteers
- 1,000 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Quality of Life
Functional Vision and Quality of Life in a Modern Society - With Emphasis on Myopia and Cerebral Visual Impairment Among Youth
Society has become increasingly digital, and many everyday services have been replaced by digital self-service solutions. This puts greater demands on our vision and our ability to interpret what we see.
- Trial name
- NCT07653074
- Testing
- ophthalmological examination
- Where
- Sweden
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Region Örebro County
Myopia
Dual-focus Soft Contact Lenses for Controlling Rapid Progressive Myopia in Young Adults
This study aims to evaluate the effectiveness and acceptability of dual-focus soft contact lenses in controlling rapid myopia progression in adults through a randomized controlled trial.
- Trial name
- NCT06528860
- Testing
- MiSight® 1 day soft contact lenses, Proclear® 1 day soft contact lenses
- Where
- China
- Volunteers
- 144 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Refractive Assessment, Refractive Disorders
Algorithm-assisted Subjective Refraction Program Dedicated to Children
Current refraction assessment in children is dependent on the Eye Care Specialist and lacks standardization. Essilor has developed new algorithm assisted subjective refraction software dedicated to children of 6-12 years old and…
- Conditions
- Refractive Assessment, Refractive Disorders, Hyperopia and Myopia, Astigmatism
- Trial name
- NCT07046065
- Testing
- Non-cycloplegic Objective refraction, Non-cycloplegic conventional subjective refraction, Non-cycloplegic subjective refraction (Kids refraction software vA with Vision-R™)
- Where
- Portugal
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- Essilor International
Intermittent Exotropia, Myopia
A Comparative Study of the Efficacy of Myopia Control Lenses With Different Mechanisms on Controlling Myopia Progression in Patients With Intermittent Exotropia
The goal of this clinical trial is to compare the efficacy of myopia control lenses with different working principles in patients with intermittent exotropia aged 6 to 12 years.
- Trial name
- NCT07642934
- Testing
- DIMS glasses, DOT glasses
- Volunteers
- 120 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Myopia, Myopia Progression
Children's Viewing Behavior
The aim of this study is to investigate the area of the spectacle lens in which a subject is viewing through regardless of task being performed.
- Conditions
- Myopia, Myopia Progression, Juvenile Myopia
- Trial name
- NCT07229365
- Testing
- Novel spectacle lens design, Spectacle lenses
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Astigmatism
Wear Experience With Daily Disposable Contact Lenses for Astigmatism Over a Long-Wear Day
The purpose of this study to assess the wear experience of people who have astigmatism when wearing a daily disposable contact lens for astigmatism over long days of wear.
- Trial name
- NCT07303920
- Testing
- Daily disposable contact lenses for astigmatism
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Ohio State University