This book systematically introduces the causes as well as the prevention and control of myopia. The book is divided into three parts: the first part explains what myopia is and its classification, causes, prevention and eye care; the second part explains scientific methods to help children control the development of myopia, eye care methods for adults and protective precautions of myopia, as well as tips for selecting frames and contact lenses; the third part systematically introduces the classification of myopia surgery and the differences, hoping to help readers understand myopia surgery and frontier technologies through detailed theories and clinical case analysis. Through the interpretation of common ophthalmic knowledge in life, his book helps readers gain knowledge of myopia and master the medical methods to deal with myopia in a scientific way.