In 'Clinical Investigations on Squint' by C. Schweigger, the author delves into a detailed analysis of the various causes and treatments of squint, also known as strabismus. The book not only provides a thorough medical insight into the condition but also touches upon the psychological impact it can have on individuals. Schweigger's writing style is concise yet informative, making it accessible to both medical professionals and the general public. Set in the 19th century, the book reflects the limited understanding of eye conditions at that time but also showcases groundbreaking research that laid the foundation for modern ophthalmology. Despite its age, the book remains a valuable resource for those interested in the history of medicine and ophthalmology. C. Schweigger, a renowned ophthalmologist of his time, was driven to write this book to share his knowledge and advance the understanding of squint. His expertise and dedication to his field shine through in the meticulous research and insights presented in the book. I highly recommend 'Clinical Investigations on Squint' to anyone interested in the history of medicine, ophthalmology, or those looking to learn more about the condition of squint and its treatments.