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The corneas were evaluated by morphological (endothelial and epithelial examinations) and biochemical (pH, glucose-lactate-metabolism, cytokines, growth factors in the medium) criteria. We could show that in principle a total healing of the cornea and a recover of the glucose-lactate-metabolism is possible after trauma. Different chemicals presented varying patterns of trauma and wound healing. The testings with different concentrations of the chemicals give at least a hint of dose response. But further testings with bigger groups of treated corneas and other concentrations need to be done to give better statements.","abstract_html":"With the objective of replacing the need of living animals to test chemicals respectively their reactions on the eye we created the EVEIT System. Therefore we designed a perfusion chamber in which rabbit corneas of animals that were killed for the food industry were clamped. 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