The spicy eyes from tears are usually caused by the following reasons: 1, the eye suffers from infectious diseases, resulting in abnormal secretion of tear components, thus producing irritation to the eye surface causing spicy eyes, for example, when suffering from blepharitis, lacrimal glanditis and other diseases, there may be similar performance. 2, caused by damage to the corneal epithelium, after the corneal epithelium is damaged, the rich sensory nerve fibers distributed inside will The inorganic salts contained in the tears will stimulate the reaction, similar to spreading salt on a wound, so it will cause spicy eye symptoms. 3, due to prolonged water shortage or severe dry eye, the concentration of inorganic salts in the secreted tears is too high, higher than the normal osmotic pressure of the cornea and conjunctival tissue, thus stimulating the eye surface and forming spicy eye symptoms.