Dry eye can lead to blindness. Usually, dry eye is relieved by medication and other treatments and most people do not go blind, but it is possible to go blind if there is damage to the cornea. Dry eye is classified as mild, moderate or severe depending on the severity. Mild and moderate dry eye disease will be relieved by standardized medication (e.g., using sodium vitrate eye drops, etc.) and will not cause blindness. If severe dry eye leads to corneal infection, severe blindness will occur. Severe dry eye combined with serious damage to the cornea, such as corneal leukoplakia, opacities, ulcers, etc., can cause vision loss and even blindness. Dry eye can be manifested as dry eyes, fatigue, burning, soreness, pain, photophobia and other symptoms, if the above symptoms should go to the regular hospital in a timely manner, once diagnosed to be actively treated, early control is very important.