Charles David Kelman (May 23, 1930June 1, 2004) was an American ophthalmologist, surgeon, inventor, jazz musician, entertainer, and Broadway producer. Known as the father of phacoemulsification, he developed many of the medical devices, instruments, implant lenses and techniques used in cataract surgery. In the early 1960s, he began the use of cryosurgery to remove cataracts and repair retinal detachments. Cryosurgery for cataracts remained in heavy use until 1978, when phacoemulsification, a procedure Kelman also developed in 1967, became the modern standard treatment. Kelman was given the National Medal of Technology by President George H. W. Bush and recognized as the Ophthalmologist of the Century by the International Congress of Cataract and Refractive Surgery in Montreal, Canada. He was also inducted into the National Inventors Hall of Fame in Akron, Ohio, and received the 2004 Lasker Award. Born in New York, Kelman graduated from Tufts University and earned his medical degree from University of Geneva before returning to New York to intern at Kings County Hospital and complete his residency at Wills Eye Hospital in Philadelphia. He was later an attending surgeon at the Manhattan Eye, Ear & Throat Hospital and the New York Eye and Ear Infirmary, and maintained a private practice. Kelman served as clinical professor of ophthalmology at New York Medical College and individually taught his techniques to many surgeons around the world. Kelman pursued a career as an entertainer alongside his medical career. He began playing the harmonica at a young age and performed on a radio show, The Horn and Hardart Children's Hour. He later learned to play the clarinet and saxophone. As a teenager, he formed a big band, began composing music, and played in his high school band and as first clarinet on the New York All-City Orchestra. While in medical school in Geneva, he appeared on two jazz radio shows and one on television. After returning to New York, he recorded a song, "Telephone Numbers", released by Chancellor Records to some success in national billboard charts. After inventing phacoemulsification, in part to promote the procedure, he began appearing regularly on television, first on The Tonight Show Starring Johnny Carson in 1975. He developed a musical comedy routine which he performed on television as well as in Atlantic City, Las Vegas, and Carnegie Hall in New York, alongside several notable jazz musicians and entertainers. He co-produced several Broadway musicals and wrote at least two