The inability to see bright light may be due to conjunctivitis, dry eye, visual fatigue, etc., which can be relieved by paying attention to rest, applying medication, eye drops and other methods. 1. Conjunctivitis: when the patient suffers from conjunctivitis, there are usually symptoms such as not being able to see the light, increased eye secretion, and so on, you can use levofloxacin eye drops under the guidance of the doctor to alleviate the symptoms such as not being able to see the light. 2. Dry eye: some patients due to reduced tear secretion, lipid abnormalities, mucin abnormalities, hybrid or mixed and other factors leading to ocular surface dysfunction, which in turn leads to the inability to see the bright light of the eyes, it is recommended that the use of artificial tears or gels and other ophthalmic drugs to relieve the symptoms. 3. Visual fatigue: prolonged use of cell phones, computers and other electronic products may lead to patients with excessive eye use, resulting in eye stinging, the eyes can not see the light and other symptoms, should pay attention to rest, reduce the proximity of excessive use of the eyes, in particular, reduce the use of electronic products. When the eyes can not see the bright light and accompanied by other symptoms, should go to the hospital in a timely manner to check, and under the guidance of the doctor to use drugs to avoid the adverse effects of private use.