Lao Wang has always felt that his eyes are dry and hard to open recently. Occasionally, his eyes still feel burning or tingling, just like his eyes are like sand. He is always jealous and itchy, and cannot help rubbing his eyes. It’s really uncomfortable. Lao Wang recently went to the hospital for examination. The doctor said it was a symptom of dry eye. Some glands on the surface of the eye secrete tears all the time. At the same time of blinking, the eyelids will gently spread tears evenly on the surface of the eye, forming a layer of [tear film] to moisten the eyes. Dry eye may be caused by insufficient amount of tear secreted by eyes, abnormal Read More …