Contact Lenses and Myopia
CLAM
1 other identifier
observational
17
1 country
1
Brief Summary
The objective of this study is to determine if multifocal contact lenses affect accommodation and/or binocular vision when worn by pediatric patients. This will be accomplished through subjective and objective accommodative and binocular experiments in children wearing single vision and multifocal soft contact lenses.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Jun 2014
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2014
CompletedFirst Submitted
Initial submission to the registry
June 30, 2014
CompletedFirst Posted
Study publicly available on registry
July 2, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2016
CompletedJuly 12, 2016
July 1, 2016
1.9 years
June 30, 2014
July 8, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Accommodative response
Accommodative response will be measured subjectively and objectively using the push-up technique and photorefraction.
Up to two hours
Binocular posture status
Binocular posture will be measured using Modified Thorington,
Up to two hours
Study Arms (2)
Multifocal contact lenses
Coopervision Proclear Multifocal
Single vision contact lenses
Coopervision Proclear Sphere
Interventions
Eligibility Criteria
The study population includes children and teens that are recruited from the University Eye Center at SUNY College of Optometry and from the greater New York City area.
You may qualify if:
- to 15 years of age
- Refractive error between -1.00 and -8.00 D sphere, with less than or equal to 1.00 D astigmatism
- Corrected visual acuity of 20/25 or better in each eye
You may not qualify if:
- Ocular or systemic disease known to affect accommodation or vision
- Convergence or accommodative disorder, or any strabismus
- Use of oral or topical medications known to affect accommodation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
SUNY College of Optometry, Clinical Vision Research Center
New York, New York, 10036, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Kathryn Richdale, OD, PhD
State University of New York College of Optometry
Study Design
- Study Type
- observational
- Observational Model
- CASE CROSSOVER
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
June 30, 2014
First Posted
July 2, 2014
Study Start
June 1, 2014
Primary Completion
May 1, 2016
Study Completion
May 1, 2016
Last Updated
July 12, 2016
Record last verified: 2016-07