Ключевые слова: acuity, adult, astigmatism, background, care, caucasian, closeup, contact, cornea, correction, corrective, defect, eye, eyesight, eyestrain, eyewear, face, farsightedness, female, finger, grey, hand, health, insert, inserting, lens, lenses, medical, medicine, myopia, nearsightedness, oculist, ophthalmologist, ophthalmology, optic, optical, optometry, person, prescription, problem, putting, shortsighted, sight, soft, treatment, view, vision, wearing, woman, young,