Contact Lenses and Myopia

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02180347

Acronym

CLAM

Enrollment

Registered

2014-07-02

Start date

2014-06-30

Completion date

2016-05-31

Last updated

2016-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myopia

Keywords

Pediatrics, Contact lenses

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.

Interventions

DEVICEContact lenses

Study design

Observational model

CASE_CROSSOVER

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

7 Years to 15 Years

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

Design outcomes

Primary

Measure	Time frame	Description
Accommodative response	Up to two hours	Accommodative response will be measured subjectively and objectively using the push-up technique and photorefraction.
Binocular posture status	Up to two hours	Binocular posture will be measured using Modified Thorington,

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026