Ключевые слова: adult, analysis, background, blur, blurred, care, clinic, diagnose, diagnostic, doctor, elder, equipment, examine, eye, eye test, eyesight, frame, glasses, health, healthcare, hospital, hyperopia, indoors, job, laboratory, lens, machine, medical, object, ophthalmologist, ophthalmology, optical, optician, optometrist, optometry, patient, people, person, professional, refraction, selective focus, sight, smile, specialist, spectacles, subjective, test, trial, vision, visual,