REFRACTION OF CHILDREN.
D001251:Astigmatism; D002648:Child; D005123:Eye; D005139:Eyeglasses; D006801:Humans; D006956:Hyperopia; D007223:Infant; D007231:Infant, Newborn; D009216:Myopia; D009907:Optometry; D012029:Refraction, Ocular; D012030:Refractive Errors
ASTIGMATISM; CHILD; EYEGLASSES; HYPEROPIA; INFANT; INFANT, NEWBORN; MYOPIA; OPTOMETRY; REFRACTION, OCULAR; REFRACTIVE ERRORS