Ключевые слова: care, characters, chart, check, chinese, concept, disease, doctor, exam, examination, eye, eye chart, eyesight, focus, glaucoma, graphic, health, healthcare, healthy, illness, impaired, impairment, letters, look, measure, medication, medicine, myopia, number, ophthalmologist, ophthalmology, optical, optician, optics, optometrist, optometry, read, see, sight, test, view, vision, visual, white,