If your vision drops again after myopia correction surgery, you need to go back to the hospital for a review to find out the cause. If it is caused by myopia regression, it can be corrected by a second surgery or glasses; if it is caused by corneal infection, it needs to be treated with antibiotic eye drops. After myopia correction surgery, there is a possibility that myopia may regress due to overuse of eyes and cause vision loss again, which can be diagnosed through optometry examination at the ophthalmology department of the hospital, and if so, can be corrected through surgery again or wearing glasses. Some patients may have corneal infection after surgery, which may cause vision loss, usually accompanied by eye redness, eye pain and other symptoms, and need to go to the ophthalmology department of the hospital in time for review, and can be treated by antibiotic drops, such as commonly used levofloxacin drops, tobramycin drops, etc. Patients should go to the ophthalmology department of the hospital in time to confirm the diagnosis, and if so, can be treated by surgery again or wear glasses for correction. Patients should go to the ophthalmology department of the hospital in a timely manner, by the doctor through a detailed examination to confirm the specific cause, and then can take targeted treatment to eliminate the symptoms.