Ключевые слова: 404, analysis, analytics, arm, covid, development, discovery, doctor, error, experience, experiences, experiment, eye, eyes, found, glasses, glove, hand, heart, hyperopia, insurance, invention, laboratory, look, magnifier, marketing, mask, method, myopia, not, observation, ophthalmologist, ophthalmology, optics, page, pandemic, pupil, quarantine, reception, research, restraint, result, science, scientist, search, success, therapist, vaccine, vision,