[Refraction studies in preschool children].
D000550:Amblyopia / Q000150:complications / Q000517:prevention & control; D002648:Child; D002675:Child, Preschool; D004948:Esotropia / Q000150:complications / Q000517:prevention & control; D006801:Humans; D008403:Mass Screening; D012030:Refractive Errors / Q000150:complications / Q000517:prevention & control*
Badanie refrakcji u dzieci w wieku przedszkolnym.