This book explores the link between iron accumulation and cataract formation, providing a detailed look at this complex relationship. It begins by introducing the subject, explaining the importance of understanding how iron can affect eye health. The different types of cataracts and their symptoms are discussed, as well as the treatments available. The book then examines the role of iron in the body, diseases linked to insufficient or excessive iron levels, and the effects of iron accumulation on cataract formation. Genetic disorders, such as hemochromatosis and Wilson's syndrome, are also discussed to show how they can influence cataract formation. Advanced iron detection methods, such as XANES and EXAFS spectroscopy techniques, are described to illustrate how they enable ocular tissues to be studied. Finally, the book presents options for reducing iron accumulation and future prospects for improving the understanding and management of cataracts.