Ключевые слова: alphabet, background, black, black background, care, characters, chart, clinic, corrective, exam, examination, examining, eye, eyeglasses, eyesight, frame, glasses, health, healthcare, information, isolated, lens, letters, lights, measurement, medical, medicine, model, oculist, ophthalmologist, ophthalmology, optical, optician, optics, optometrist, optometry, panel, pointing, problem, professional, sample, specialist, studio, style, technology, test, testing, vision, visual, wall, white,