Precautions for laser surgery examination:1: If you have the habit of wearing contact lenses, you must stop wearing soft contact lenses three days before the examination and stop wearing hard contact lenses seven days before the examination.Orthokeratology tablets must be stopped 1 month before the examination2: Mydriatic agent will be used during the examination. Mydriatic agents will affect vision for 4-6 hours, making it difficult and blurry to see close objects, and the eyes will be slightly sensitive to light. It is recommended not to ride your bicycle to the clinic on your own. Public transportation is provided.3: Bring your photo ID (medical insurance card) and provide registration information.4: Please bring a mask