Effect of Diffusion Optics Technology (DOT) Spectacle Lenses on Choroidal Thickness (ASH-2)

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.