In this thoroughly updated fourth edition, award-winning contact lens author, lecturer, and researcher, Professor Nathan Efron, presents an easily accessible, systematic account of how to identify, understand, and manage contact lens complications. Professor Efron is renowned for his ability to distil often-complex principles of ocular physiology and pathology into a clinically-friendly format. The subject matter is arranged logically by tissue structure - which is the way practitioners naturally approach clinical problems. Beautifully presented and lavishly illustrated with full-color schematic diagrams and clinical pictures, this book can serve as both a practical chair-side manual and authoritative reference.