Ключевые слова: analysis, analyzing, biology, chemical, chemist, chemistry, clinic, concentration, doctor, exam, examination, experiment, expertise, eye, eyesight, glasses, healthcare, horizontal, hospital, indoors, instrument, lab, laboratory, lens, measurement, medical, medicine, men, microscope, occupation, optical, optometrist, optometry, patient, profession, professional, research, sample, science, scientific, scientist, sight, specialist, study, technician, test, treatment, vision, working,