[Need of the population for nonastigmatic monofocal eyeglass lenses].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005139:Eyeglasses / Q000600:supply & distribution*; D006801:Humans; D008875:Middle Aged; D012029:Refraction, Ocular; D014586:USSR
O potrebnosti naseleniia v neastigmaticheskikh odnofokal'nykh ochkovykh linzakh.