Ключевые слова: care, cure, determining, device, diameter, diopter, equipment, ergonomic, eye, eyeglass, focus, functions, glass, glasses, health, healthcare, instrument, kit, lens, lenses, measure, measurement, medical, medicine, object, oculist, on, ophthalmic, ophthalmologist, ophthalmology, opthalmologic, optic, optician, optics, optometrist, optometry, red, refraction, science, set, tech, treating, vision,