Myopia Prevalence in Canadian School Children - a Pilot Study

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01942057

Acronym

Falcon

Enrollment

173

Registered

2013-09-13

Start date

2013-12-31

Completion date

2015-04-30

Last updated

2015-07-20

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

Conditions

Myopia

Brief summary

The goal of this study is to determine the prevalence of nearsightedness in Canadian school children living in the Waterloo Region.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

6 Years to 18 Years

Healthy volunteers

Yes

Inclusion criteria

* Has had a parent/legal guardian read the study consent form and who agrees to allow them to participate in the study by signing the consent form * Has had the letter of assent for children explained to them, the child has agreed to participate and the letter has been signed by the study investigator and the child * Has provided the completed Questionnaire (Appendix 4A for parents to complete on behalf of their children in school grades 1 and 2, 6 and 7; Appendix 4B for children to complete that are in school grades 11 and 12) * Is currently in school grades 1 and 2, 6 and 7 or 11 and 12 * Is willing and able to follow instructions and maintain the appointment schedule

Exclusion criteria

* Has not given verbal assent to participate * Has known sensitivity to the diagnostic pharmaceuticals to be used in the study * Has undergone refractive error surgery or orthokeratology * Has serious medical disorders or eye diseases/abnormalities such as amblyopia and cataract or a cognitive inability to conduct the tests

Design outcomes

Primary

Measure	Time frame
Number of children with spherical equivalent refraction of at least -0.50D in at least one eye	Day1

Countries

Canada

Outcome results