NCT02180347CompletedNot Applicable
Contact Lenses and Myopia
State University of New York College of Optometry1 site in 1 country17 target enrollmentStarted: June 2014Last updated:
Conditions
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 17
- Locations
- 1
- Primary Endpoint
- Binocular posture status
Study Overview
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.
Study Design
- Study Type
- Observational
- Observational Model
- Case Crossover
- Time Perspective
- Cross Sectional
Eligibility Criteria
- Ages
- 7 Years to 15 Years (Child)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •7 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
Exclusion Criteria
- •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
Outcomes
Primary Outcomes
Binocular posture status
Time Frame: Up to two hours
Binocular posture will be measured using Modified Thorington,
Accommodative response
Time Frame: Up to two hours
Accommodative response will be measured subjectively and objectively using the push-up technique and photorefraction.
Secondary Outcomes
No secondary outcomes reported
Investigators
Kathryn Richdale
Assistant Professor
State University of New York College of Optometry
Study Sites (1)
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