Vitamin B2 is an important nutrient for maintaining eye health, and its benefits for the eyes are mainly in the following areas: 1. It can prevent blepharitis and can treat blepharitis. Vitamin B2 is an important nutrient for maintaining eye health, as it can prevent and treat blepharitis, which is a chronic inflammation of the eyelid margin in the outer corner of the eye and is associated with vitamin B2 deficiency. 3. It protects corneal tissue, promotes the repair of corneal damage, and relieves patients from eye stinging, photophobia, tearing, and eye redness caused by damaged corneal epithelium.