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 .

它通常是由严重的结膜炎或眼结膜发炎所引起，但它也可能是肿瘤以及伤及泪腺区和肺结核的出血性疾病所引起，印第安纳大学医学院的雷切尔弗里曼（rachelvreeman）博士解释说。