Ключевые слова: 30s, 50s, accuracy, caucasian, doctor, exam, eye, eye specialist, eye test, eyesight, female, gesture, hand, happy, health, health service, healthcare, holding, hospital, indoors, lab coat, letters, male, man, mature adult, medical, medical examination, mid adult, ophthalmologist, optician, patient, pointing, practitioner, reading, showing, sight, smiling, specialist, test, woman,