Ключевые слова: alphabet, angle, background, black, blind, blurred, chart, equipment, exam, eye, eyesight, eyewear, focus, forward, glass, glasses, health, healthcare, high, human, instrument, isolated, key, lens, letter, literature, looking, medical, medicine, nobody, objects, ophtalmologist, optical, optometrist, optometry, reading, science, selective, shot, studio, test, text, two, typescript, view, white, wisdom,