Ключевые слова: abstract, astigmatism, blind, chart, conceptual, examination, eye, eye chart, eye exam, eyeglasses, eyesight, eyewear, frame, glasses, health, health care and medicine, human eye, lenses, looking, magnify, medical, more, ophthalmologist, ophthalmology, optician, optometrist, optometry, read, reading, see, sight, spectacles, style, test, vision, visual,