Eyes that hurt from looking at welding light are considered to have developed electro-optical ophthalmia, which can be treated with general therapy or medication depending on its severity. Electro-optical ophthalmia, also known as snow blindness, is often caused by acute exposure to ultraviolet radiation, which causes pain in the eye tissues. Welding can cause UV damage to the eye while working, resulting in the appearance of a strong foreign body sensation, stinging pain, photophobia, and tearing. General condition of mild patients can be mostly self-healing, through cold compresses, pay attention to rest, can promote the recovery of eye tissues, but should pay attention to do not rub the eyes; symptoms are more serious can be treated with drugs, such as calf blood deproteinized extract ophthalmic gel, can promote the recovery of the corneal epithelium, at the same time with the use of preventive medicine, such as levofloxacin eye drops and so on. The eyes look at the welding light is very painful, should be timely away from the welding environment, discomfort symptoms are obvious, you should go to the hospital as soon as possible, under the guidance of the doctor for treatment. Drugs need to follow the doctor’s instructions to use, not blindly use their own medication.