"China Petrochemical Guangming" health express is equivalent to a train hospital. The train is equipped with advanced medical facilities and skilled well-known ophthalmologists, providing free sight-restoring surgery for poor cataract patients in this area. From 2004 to 20 14, it has crossed 13 remote and poor provinces, helped more than 28,000 cataract patients to see the light again, donated 10 cataract treatment center and advanced medical equipment, and trained a large number of ophthalmologists, benefiting thousands of people.