Ключевые слова: blind, blindness, care, chart, check, checkup, color blind, colors, colour blind, colours, concept, correction, exam, examination, eye, eyesight, focus, health, healthcare, healthy, letter, long, medical, medicine, myopia, ophthalmologist, ophthalmology, optical, optician, optometrist, optometry, read, see, short, sight, sighted, snellen, table, test, testing, view, vision, visual, white,