Cataract surgery is the procedure done for the removal of the opacified natural lens of the eye and its replacement with an artificial intraocular lens. Unless treated, cataract leads to a loss of vision or vision impairment. During cataract surgery, the cloudy cataract lens is removed by emulsification or by cutting it out. High volume, minimally invasive, small incision phacoemulsification is the standard cataract surgery procedure. Cataract surgeries are performed under local anesthesia and usually done in an outpatient setting. After the surgery, anti-inflammatory and antibiotic eye drops are used. This book is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of cataract surgery. It presents researches and studies performed by experts across the globe. For all readers who are interested in cataract surgery, the case studies included in this book will serve as an excellent guide to develop a comprehensive understanding.