CALEC Procedure (VIDEO) Mass Eye and Ear This video is under embargo. Please login to access this video. Caption Mass Eye and Ear doctors collaborate with Dana-Farber Cancer Institute to rebuild damaged corneas using patients' own stem cells for first time in United States. Credit Mass Eye and Ear Usage Restrictions Please credit Mass Eye and Ear License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.