有些中老年人一遇到迎面吹来的冷风,就会流泪。这是什么原因呢?(1)一般情况下,泪腺受到冷风刺激后,可反射性地引起泪液分泌增多。老年人由于眼睑皱褶多,上眼睑下垂或下眼睑出现眼袋,使下眼睑不能紧贴眼球表面,泪水的正常排出受阻,更易出现迎风流泪的现象。这属于老年性改变,医学上称功能性溢泪。 Some middle-aged and elderly people cry when they face the cold wind blowing in the air. What is the reason for this? (1) Under normal circumstances, the lacrimal gland stimulated by the cold, reflex can cause increased tear secretion. The elderly due to eyelid folds, the lower eyelid ptosis or lower eyelid bags, the lower eyelid can not close the eye surface, the normal discharge of tears blocked, more prone to the phenomenon of wind and tear. This is a senile change, medical claims functional tears.