Father of medicine, Sushruta was born near Bihar. In an era when the world didn't know a bit about medicine, Indian sages were masters of ayurveda. Sushrata was the first man to practice surgery, rhinoplasty or nose job, and cataract surgery.
The Sushruta Samhita contains 184 chapters and description of 1120 illnesses, 700 medicinal plants, a detailed study on Anatomy, 64 preparations from mineral sources and 57 preparations based on animal sources. These specialize in pediatrics, geriatrics, diseases of the ear, nose, throat and eye, toxicology, aphrodisiacs and psychiatry. Every aspect of medicine has been included in this book- you name it.
Traditional cataract surgery was performed with a special tool called the Jabamukhi Salaka, a curved needle used to loosen the lens and push the cataract out of the field of vision. The eye would later be soaked with warm butter and then bandaged. Greek philosophers and scientists traveled to India to learn these surgeries. The removal of cataract by surgery was also introduced into China from India. Modern medicos should read these ancient texts and learn from them.