Proper supplementation of vitamin B2 for the eyes is to relieve visual fatigue, protect corneal tissue, prevent and treat blepharitis. 1. Favorably relieves visual fatigue. Vitamin B2 can nourish the retinal tissues of the eyes and help relieve symptoms such as visual fatigue. 2. Helps protect corneal tissue. Vitamin B2 promotes the repair of corneal damage, which can alleviate symptoms such as photophobia, tearing and eye stinging caused by corneal epithelial damage. 3. Prevent and treat blepharitis. Chronic blepharitis is closely related to the lack of vitamin B2, appropriate supplementation can effectively reduce the occurrence of blepharitis, for the formation of blepharitis has a better therapeutic effect. In general, the side effects of vitamin B2 supplementation in moderation are not obvious, if oversupplementation, nausea, fatigue, abdominal distension and other discomforts may occur. It is recommended to use the drug under the guidance of a doctor.