This updated by Drs. David G. Hunter and Constance E. West includes new questions added to selected chapters and a new chapter covering refractive surgery, as well as a key chapter that helps you evaluate patients with symptoms related directly to optical or refractive concerns. The complex concepts of optics are revealed in easy-to-understand explanations enhanced by simple illustrations. allows you to test your knowledge while increasing your understanding of optics. Designed in a clear, concise, question-and-answer format, this book allows for self-assessment and a chance to test your understanding before you read the answer. • Written in a light and approachable style to make optics accessible and understandable • Unique question-and-answer format allows for self-assessment while studying to identify areas where more work is needed • Perfect for limited study time • Includes real-life examples that are clinically relevant • Numerous practical tips to help enhance clinical practice • Includes 223 questions and answers Whether you’re an ophthalmologist, ophthalmic technician, resident or student, reviewing the optics facts and concepts is easier with .