Ключевые слова: astigmatism, care, chart, check, clinic, cornea, correction, corrective, diagnosis, diagnostic, digital, diopter, doctor, equipment, exam, examination, eye, eyeglasses, eyesight, focus, glasses, glaucoma, health, healthcare, laser, lens, man, medical, medicine, myopia, oculist, ophthalmologist, ophthalmology, optical, optician, optics, optometric, optometrist, optometry, patient, read, see, sight, surgery, technology, test, treatment, view, vision, visual,