Ключевые слова: a window to the mind, black eye, camera, communication, conjunctiva, cornea, diagnosis, emotional expression, eye, eye contact, eyeball, eyebrow, eyebrows, eyelashes, eyes, eyesight, face, facial expression, human, human body, iris, lens, light, lower eyelid, medical, medicine, optic nerve, optometry, pupil, retina, science, see, sense organ, structure, tears, upper eyelid, visibility, vision, white of the eye,