维生素A缺乏症,俗称干眼病。多发生于婴幼儿期。此病一般是由于喂养不当造成孩子偏食或孩子生病所引起。患有“乳儿肝炎”或慢性消化不良的孩子,很容易呈现维生素A缺乏的症状。 维生素A缺乏症的症状表现为:眼睛怕光,眨眼,似进沙子的感觉,但眼泪很少。如果仔细观察孩子,可发现其眼睛无神,角膜无光泽且异常干燥。在贴近眼角膜两旁的结膜上,可出现由于干燥而引起的 Vitamin A deficiency, commonly known as dry eye. Occurred in infancy and more. The disease is generally due to improper feeding caused by partial eclipse children or children caused by illness. Children with “infant hepatitis” or chronic dyspepsia are prone to symptoms of vitamin A deficiency. Symptoms of vitamin A deficiency manifested as: fear of light eyes, blink of an eye, seems to feel into the sand, but little tears. If you look closely at your child, you can see the eyes are atheistic, the cornea is dull and abnormally dry. Close to the cornea on both sides of the conjunctiva, may appear due to dry caused