[Activation of the reticulo-endothelial system in a healthy cornea with experimental cryotherapy]

Low temperatures applied to a healthy cornea provokes in its stroma the formation of a limited area deprived of cells. Excited histiocytic cells which obtained the capacity of movement penetrate soon to this area from the surroundings. They demonstrate also ultra-phagocytic capabilities storing silver. This evidences the setting in motion of cells of the reticulo-endothelial system of the healthy cornea caused by the low temperature; these cells replace the cells of the stroma damaged by the cold. The cornea however does not loose its transparency. Recognition of the action of low temperature by creating a cell-free area and by stimulation of the cells of the RE system in a healthy cornea has a significance for a better knowledge and understanding of the mechanism of the influence of low temperature on the cornea.