Book excerpt: Revised and updated version of the last edition keeping its clear and systematic style intact with complimentary access to e-book with digital resources like MCQs, videos, animations• A new chapter on Nystagmus• Revised & updated topics enriched with additional photographs, figures and diagrams• Many disorders that were listed just by name in the last edition have been given small description for ready reference.• Complimentary access to e-book with digital resources: o University and PGMEE patterned MCQs o Procedure videos and animations • In-depth discussion of signs, symptoms and history taking• Practical tips and points useful in day-to-day clinical practice• Highlights applied anatomical and physiological principles underlining each procedure• Systematic presentation of information – each chapter devoted to specific system of eye