“…The operating microscope was introduced in 1921 by Nylen, an otolaryngologist, for microsurgical reconstruction of the middle ear [33]. With technical advancements, its use became common for ear surgery, and Peritt introduced the operating microscope to ophthalmologic surgery in 1950 [34]. It was not until the monumental work, in 1960, of Julius H. Jacobsen and Ernesto L. Suarez at the University of Vermont, however, that the operating microscope was applied to reconstruction of small blood vessels [35].…”