Effects of Low Concentration Atropine on Pupillary Size and Accommodative Amplitude

Inclusion Criteria: * Able to read and comprehend Vietnamese and having parents or legal guardians who give informed consent as demonstrated by signing a record of informed consent. * Be between 6 and 12 years old, male or female. * Willing to apply eye drops once nightly at bedtime for two weeks and follow the clinical trial visit schedule as directed by the Investigator. * Willing to answer the questionnaire about subjective measurements * Have ocular findings deemed to be normal * No contact lens wearing history * Vision correctable to at least 20/25 or better in each eye with spectacles Exclusion Criteria: * Any pre-existing ocular irritation, injury or condition, including infection or disease. * Any systemic disease that adversely affects ocular health e.g. diabetes, Graves disease, and auto-immune diseases such as ankylosing spondylitis, multiple sclerosis, Sjögrens syndrome and systemic lupus erythematosus. Conditions such as systemic hypertension and arthritis do not automatically exclude prospective participants. * Use of or a need for concurrent category S3 and above ocular medication at enrolment and/or during the clinical trial. * Use of or a need for any systemic medication or topical medications which may alter normal ocular findings / are known to affect a participant's ocular health / physiology or contact lens performance either in an adverse or beneficial manner at enrolment and/or during the clinical trial. NB: Systemic antihistamines are allowed on an "as needed basis", provided they are not used prophylactically during the trial and at least 24 hours before the clinical trial product is used. * History of eye surgery * History of use of any myopia control interventions such as Orthokeratology, Rigid Permeable Contact Lenses Eye surgery within 12 weeks immediately prior to enrolment for this trial. * Currently treated with other interventions for myopia control * Contraindications to atropine such as pulmonary disease, heart conditions and ADHD * Known allergy or intolerance to ingredients to atropine eye-drops and other derivatives of anti-muscarinic receptor agents. * Currently enrolled in another clinical trial.