Inclusion Criteria:  Children of both sexes from the age of 6 Children whose parents have read and signed the declaration of consent Spherical equivalent of refraction <-0.5 dpt. Distant vision in both eyes without correction 1.0 Willingness to wear reading glasses Possibility of a five-year follow-up  Exclusion Criteria:  Children who already wear glasses Astigmatism over 1.5 diopters Anisometropy greater than 1.5 diopters Eye diseases that affect refraction development