Vision loss after cone corneal cross-linking surgery is usually related to infection and inflammation, bright light stimulation and corneal perforation. General treatment, medication and surgery can be taken to relieve the symptoms according to the cause of the disease. 1. Infection and inflammation: If you do not take good care of the local area after cone corneal cross-linking surgery, and are infected with bacteria or other microorganisms, vision loss may occur. Local use of levofloxacin eye drops and ofloxacin eye drops can be given to anti-inflammatory and sterilization; if the infection is serious, cephalosporin can be taken orally. 2. Stimulated by bright light: after cone corneal crosslinking surgery, prematurely looking at cell phones, TV, computers, etc., may stimulate the eye and thus lead to vision loss. At present, you need to strictly limit the exposure to bright light. When you go out during the recovery period, it is recommended that you wear sunglasses to avoid being stimulated by bright light, which may affect your vision. 3. Corneal perforation: Cone corneal cross-linking surgery is more traumatic and is prone to corneal perforation after the surgery, leading to vision loss. For relatively small perforations, recombinant bovine basic fibroblast growth factor eye drops can be used externally; while larger perforations require corneal transplantation. After cone corneal crosslinking surgery, if you find vision loss, you should seek medical advice and analyze the cause under the guidance of your doctor before treating the symptoms.