Ramón Castroviejo
Ramon Castroviejo in 1928
Born	Ramón Castroviejo Briones August 24, 1904 Logroño, La Rioja, Spain
Died	January 2, 1987 (aged 82) Madrid, Spain
Years active	1927–1975
Known for	Improving corneal transplantation technique
Medical career
Profession	Ophthalmologist
Research	Corneal transplantation

Ramón Castroviejo Briones (August 24, 1904 – January 2, 1987) was a Spanish and American eye surgeon remembered for his achievements in corneal transplantation.

Born in Logroño, Spain he received his medical education at the University of Madrid. He graduated in 1927 and worked at the Chicago Eye, Ear, Nose and Throat Hospital and the Mayo Clinic before, in 1931, he came to Columbia Presbyterian Medical Center in New York. He became the director of Ophthalmology at St. Vincent's Hospital before he opened his own hospital when he bought the Hammond House. After his retirement he moved to Madrid where he died.^[1]

While not being the first to successfully graft human cornea, he improved the technique of the operation in the 1930s and 1940s, prompting the worldwide adoption of corneal transplantation as a standard way to deal with severe corneal pathology. His keratoplasty technique remained standard until more efficient suture materials became available.^[2]

Castroviejo designed the Castroviejo needle holder, an instrument used in eye, dental and other forms of microsurgery.

• Vladimir Filatov - a Soviet contemporary of Castroviejo that was also a pioneer in corneal transplantation.

• Atlas of Keratectomy and Keratoplasty. Ramon Castroviejo. 446 pages. Published by W.B. SAUNDERS COMPANY in 1966.

• Cornea Society - previously known as Castroviejo Cornea Society.
• Curriculum Vitae at the Madrid University website
• The 10 most influential ophthalmologists in the 20th century, squintmaster.com