Ключевые слова: astigmatism, background, care, caucasian, check, clinic, consultation, correction, defect, diagnostic, diopter, doctor, equipment, exam, examination, eye, eyeglasses, eyesight, female, frame, glasses, health, healthcare, hospital, instrument, lens, measurement, medical, medicine, myopia, oculist, ophthalmologist, ophthalmology, optic, optical, optician, optometrist, optometry, patient, person, professional, sight, specialist, technology, test, treatment, vision, visual, woman,