Before revision: In 1976 , B&L introduced the Greens II refractor, also called the Bausch and Lomb Refractor .
After revision: In 1978, or the Greens' Mark II Refractor Clinical and Experimental Optometry Volume 61, 1978 - Issue 2 p. 73, 74 "The Greens' II Refractor", O. Ashley Williams , B&L introduced the Greens II refractor, also called the Bausch and Lomb Refractor .