What "learning lenses" mean in the beginning school grades-and why.
A M
AM
SKEFFINGTON
D001248:Asthenopia; D002648:Child; D005139:Eyeglasses; D006801:Humans; D007223:Infant; D007858:Learning; D007909:Lenses; D014796:Visual Perception
EYEGLASSES; EYESTRAIN/in infancy and childhood; VISUAL PERCEPTION/in infancy and childhood