Ключевые слова: abstract, age, blind, blur, care, chart, check, checkup, conceptual, cornea, diagnosis, distortion, exam, examination, eye, eyeglass, eyesight, focus, frame, glasses, health, lense, letters, look, magnify, medical, ophthalmologist, ophthalmology, optical, optician, optics, optometry, pair, read, scale, see, sight, specs, spectacles, style, test, vision, visual,