Treatment principle of chemical burn of eyes: It is the most important step to wash eyes thoroughly on the spot against time. Local materials should be taken immediately, and the washing liquid can be physiological saline, neutralizing liquid, tap water or other clean water, and it should be washed repeatedly with plenty of clean water. When washing, you should open your eyelids, turn your eyes, expose the vault, and thoroughly wash out the chemicals in the conjunctival sac. Rinse for at least 30 minutes. Quicklime should not be washed immediately if it enters the eye by mistake. Take out the particles before washing. Drip local anesthetic to relieve pain and eyelid spasm. Injection of drug neutralization solution under bulbar conjunctiva: 5% sulfadiazine sodium1~ 2 ml can be used for acid burn; Inject vitamin c into alkali burn. Autohemotherapy: If bulbar conjunctival necrosis is not serious, autohemotherapy can be used. After subconjunctival injection of 1% ~ 2% procaine for anesthesia, 2 ml of venous blood of the injured person was taken and immediately injected under the conjunctiva of the injured eye.
Vitamin C: Local and systemic application of a large amount of vitamin C can inhibit collagenase and promote corneal collagen synthesis. After the injury, subconjunctival injection can be done, 2ml each time, 1 ~ 2 times /d, which can be administered orally or intravenously in large quantities and applied to the whole body. Necrotic tissue can be removed within 3~6 hours after injury to prevent symblepharon. In severe alkali burn, anterior chamber puncture can be done to release alkaline aqueous humor and reduce intraocular reaction. It is invalid for more than 8 hours. When the bulbar conjunctiva has obvious edema and cannot be injected with neutralizer, conjunctival incision can be performed to remove necrotic tissue. Prevention of corneal perforation with collagenase inhibitor: sodium citrate 10% or cysteine (2.5%~5%) can be dripped, and tetracycline drugs are applied to the whole body, 0.25g each time, 4 times a day. Use antibiotics to control infection. In addition, 1% atropine was used to mydriasis, three times a day. Topical and systemic corticosteroids can inhibit inflammatory response and neovascularization. 5% disodium EDTA can promote the excretion of calcium, which can be used in cases of quicklime burn.