This book highlights the great achievements made in order to overcome challenging situations with different flanging techniques. Liliana Werner will discuss the different causes of IOL luxation. Shin Yamane, Sergio Canabrava, Gabor Scharioth and Ehud Assia will describe their disruptive techniques for scleral IOL fixation. Even though it is impossible to describe and discuss the plethora of surgical techniques, implants and instruments completely, we also tried to create a systematic approach for decision making and give an overview on instrumentation. As flanging techniques represent a very demanding surgery, the aim of this book is to steepen the learning curve and to encourage surgeons to add the presented techniques to their surgical armamentarium.