Myopia Prevalence in Canadian School Children - a Pilot Study

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