Ключевые слова: astigmatism, background, blind, blue, bottle, care, close, concept, contact, container, copy, copyspace, cornea, correction, corrective, defect, distance, eye, eyestrain, farsightedness, flat, health, hygiene, lay, lens, lifestyle, medic, medical, medicine, myopia, oculist, ophthalmologist, optician, optometry, prescription, shortsightedness, solution, space, text, top, tweezers, up, view, vision, visual, wear,