Ключевые слова: background, care, clean, clear, color, contact, correct, correction, diopter, eye, eyesight, eyewear, health, healthy, hygiene, lens, lenses, light, medical, medicine, object, ophthalmologist, ophthalmology, optical, optician, optics, optometrist, optometry, personal, see, sight, soft, sterile, transparent, treatment, vision, visual, white,