[The unilateral emigration of leukocytes from conjunctival vessels (author's transl)].

The phenomenon of unilateral leukodiapedesis is demonstrated in the irritated conjunctiva of rabbits and rhesus-monkeys. The leukocytes will penetrate the vessel walls first in the neighbourhood of the irritation. This can be demonstrated during the first minutes after the onset of an inflammatory reaction only, i.e. prior to a general leukocytosis of the tissue. By fixation with glutaraldehyde or osmium-tetroxyde the dynamic movement can be visualized and the directions of the irritation and of the migration are obvious in the conjunctiva. So this tissue provides an excellent model to demonstrate the unilateral sticking and the directed migration of leukocytes through vessel walls, a fact to which references seem to be missing in the ophthalmopathologic and pathologic literature.