but dr. sato makes a cut of only six millimeters. the patient goes home the next day. dr. sato was one of several doctors in japan able to perform this surgery. until recently, most of his patients were locals. they found out about him through word of mouth. but now, through the website, many more people know about him. >> translator: it's great that people can find out about him online. >> reporter: this doctor heads the foundation that runs the website. he is also president of the japanese association of medical science. he and a team of doctors check thoroughly into the backgrounds of the featured doctors. this ensures that patients receive the best treatment available. >> translator: some of that's doctors are not well-known but are excellent at what they do. we look for doctors like this and feature them on our site. >> reporter: some doctors hope that this site will lead to more medical advances. this professor of osaka university is a leading researchers in the field of corneal regeneration. he was the first surgeon any where to successfully regenerate a cornea with