Book excerpt: The Eye in Systemic Disease, Second Edition presents an overview of the relationship of the eye and medicine. The book details the systemic aspects of diseases. The topics discussed include various eye conditions such as conjunctivitis, episcleritis, keratitis, keratoconjunctivitis sicca, and cataract. Endocrine, circulatory, rheumatological, neurological, pulmonary, and blood disorders are covered as well. Physicians and students of medicine and pathology will find the book very useful.