Red blood in the eye after being touched is mainly divided into the following two cases: 1. External force touching the conjunctiva, resulting in the rupture of the conjunctival capillaries, generally does not affect vision and does not require treatment. If there is a foreign body sensation in the eye, you can use cold towels to apply cold compresses early to reduce the symptoms of congestion, and hot compresses after 3 days to promote the absorption of bleeding, remember not to rub the eye, otherwise it will lead to the expansion of the bleeding area. 2, conjunctival laceration may require a visit to the ophthalmology department, so that the doctor under the slit lamp examination, if the conjunctival laceration wound is less than 5mm and the wound is well aligned, it is recommended that conservative treatment, local antibiotic drops can be used If the conjunctival laceration is less than 5mm and the wound is well aligned, conservative treatment is recommended, with topical antibiotic drops or eye ointment and regular review. If the laceration is larger than 5 mm or if the wound is poorly aligned, or if the subconjunctival fascia is exposed, debridement and suturing of the conjunctival laceration under local anesthesia is recommended.