Parsons’ Diseases of the Eye has served as a trusted textbook of Ophthalmology for undergraduate students for well over 100 years. It also meets the needs of postgraduate students and practising clinicians as a useful guide to basic concepts and a comprehensive compendium of knowledge for ophthalmic care. First published in 1907, the book soon became a fundamental text for students on account of its clear descriptive style and thorough coverage of the practical aspects of ocular disorders. Over the years, the book has maintained its clinical relevance through periodic revisions with suitable updates and hence retained its prime position at the top of its field.