Eagle eye to the tear duct”. Eagle tears moisten the eyes and contain the chemical lysozyme which protects against salt water and also destroys bacteria, thus preventing eye infections. The nictitating membrane acts a sweeping wiper across the eye. The eagle iris is a pale yellow color, much lighter than human eyes. Both eagles and humans have a white area called the sclera, but in the case of eagles, it is hidden below the eyelid. Eyelid openings are oval-shaped in humans, while they are round in the case of birds' eyes. Most eagles have excellent vision. Generally, eagles do not suffer from
The Eye of the Heron in "The Eye of the Heron" are themes common to much of Le Guin's fiction and include the social constructions of gender, interactions between individuals from different societies, intra-actions within societies, and contact with that which is perceived as alien or other. The novel also explores different forms of social and political organization by juxtaposing pacifist anarchism with violent oligarchy. The characters' metaphorical internal journeys are reflected in literal external journeys throughout the plot. When asked, in a 1995 interview, what role the feminist movement had played in her writing, Le Guin situated "The Eye of the Heron" in the