This book provides insights into the rapid progression of optometry as an allied subspecialty of ophthalmology over the past two decades. It details how sophisticated diagnostic technologies and highly efficacious novel therapies have revolutionized the field. The chapters cover topics such as cutting-edge diagnostic tools, groundbreaking therapeutic approaches, and the integration of new technologies into clinical practice. Written by global experts, the book addresses the critical question of how these technologies have transformed patient care. Additionally, it discusses the latest trends in vision science research. This book is relevant for optometry and ophthalmology residents, practicing optometrists and ophthalmologists, vision science researchers, as well as general optometrists and ophthalmologists in training, providing insights into the latest developments in the field.