Effect of Diffusion Optics Technology (DOT) Spectacle Lenses on Choroidal Thickness

Inclusion Criteria: * Are 8-14 years of age; * Are able to read (or be read to), understand and sign the assent document; * Are accompanied by a parent or legal guardian who is able to read, understand and sign the parental information and permission document; * Are emmetropic by non-cycloplegic auto-refraction, which means both refractive meridians should be within +1.00D and -1.00D inclusively; * Are willing and able to follow instructions. Exclusion Criteria: * Are participating in any concurrent interventional clinical or research study; * Have a history of myopia control treatment in the past year; * Have amblyopia in either eye or known to have any other binocular vision disorder, such as accommodative insufficiency; * Have any known active ocular disease and/or infection; * Have a systemic condition that in the opinion of the investigator may affect a study outcome variable. Examples include diabetes mellitus, hyperthyroidism; * Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable. Examples include Atropine eye drops; * Have undergone strabismus surgery, refractive error surgery or intraocular surgery; * Are a child of a member of the study team.