Jacobsen S R, Sperling S
Acta Ophthalmol (Copenh). 1978 Feb;56(1):161-7. doi: 10.1111/j.1755-3768.1978.tb00478.x.
Scanning electron microscopic observations of human corneal endothelium revealed a binding of ruthenium red-osmium tetroxide to a material on the inner surface of the endothelial cells on the cornea and the trabecular meshwork. The coating material was partially digested by proteolytic enzymes.