Ключевые слова: ball pen, black, care, character, chart, check, closeup, depth, diagnosis, diagnostic, draw, drawing, exam, examination, examine, eye, eyesight, field, focus, health, healthcare, healthy, impaired, impairment, letters, macro, measure, medical, myopia, ophthalmic, ophthalmologist, ophthalmology, opthalmology, optical, optician, optometrist, optometry, pen, read, see, shallow, shape, sight, snellen, test, view, vision, visual, white, write,