Ключевые слова: book, business, college, concept, correction, device, digital, display, domestic, ebook, education, electronic, ereader, eyeglasses, eyesight, gadget, glasses, health, home, house, hyperopia, indoor, knowledge, learn, leisure, lens, lifestyle, medical, myopia, nobody, notebook, notepad, notepaper, ophthalmology, optical, read, reader, school, screen, see, sight, spectacles, square, study, technology, text, vision, white, wooden,