Instillation of the test item resulted in effects on the cornea , iris and conjunctivae .
测试样本的灌输对角膜、虹膜和结膜有影响。
It is usually caused by severe conjunctivitis or inflammation of the conjunctivae of the eye , but it can also be caused by tumors , bleeding disorders , injuries to the tear duct area and tuberculosis , explained dr. rachel vreeman of the indiana university school of medicine .
