Ключевые слова: care, check, check up, clinic, closeup, depth of field, device, diagnosis, equipment, exam, examination, eye, eyecare, eyeglass, eyesight, focus, health, health care, healthcare, healthcare and medicine, inspection, instrument, lab, lens, machine, measure, measurement, medical, medicine, microscope, no people, number, ocular, ophthalmic, ophthalmologist, ophthalmology, optical, optician, optometrist, optometry, phoropter, scale, science, selective focus, sight, technology, test, treatment, vision, visual,