Ключевые слова: background, black, care, chart, check, checkup, clinic, correction, diagnostic, disease, doctor, exam, examination, eye, eyeglasses, eyesight, eyewear, flat, frame, glasses, health, healthcare, hospital, illness, lay, lenses, letters, look, measure, medicine, object, ophthalmic, ophthalmology, optical, optician, optometry, pair, read, see, sight, snellen, stylish, symbol, test, top, treatment, view, vision, visual, white,