Ключевые слова: bow tie, boy, brown hair, brunette, caucasian, chart, child, childhood, concept, cute, development, disability, early learning, education, elementary, eye test, eyesight, learn, learning, looking at camera, male, optical, optician, portrait, pupil, reading glasses, school, schoolchild, sense, sight, standing, studio, uniform, vision, white background, world sight day,