Ключевые слова: apparatus, clinic, cornea, correction, diagnosis, diopter, disease, doctor, equipment, examination, eyes, eyesight, glasses, health, healthcare, hospital, instrument, iris, lab, lens, looking, medicine, myopia, oculist, ophthalmic, ophthalmologist, ophthalmology, optical, optician, optometer, optometrist, optometry, patient, professional, research, retina, science, selective focus, slit, spectacles, surgery, test, therapy, treatment, vision, visual,