Columbia subject headings:
Eye in literature.
Ophthalmology.
Shakespeare, William, 1564-1616--Knowledge and learning.
Vision in literature.
Harvard subject headings:
Eye in literature.
Shakespeare, William, 1564-1616--Knowledge--Ophthalmology.
Visions in literature.
Princeton subject headings:
Eye in literature.
Human body in literature.
Shakespeare, William, 1564-1616--Knowledge--Anatomy.
Vision in literature.