1. Gel can promote wound healing, and there will be a small incision in the cornea during the operation. Using gel after operation can promote corneal epithelial repair, accelerate corneal healing, keep tear film stable after operation, and avoid corneal injury caused by strenuous exercise.

2. Gel can prevent infection, and the use of gel after operation can also prevent the wound from contacting with the outside world and causing infection. If you don't pay attention to eye hygiene after operation, bacteria and fungal pathogens will enter the eyes, which will cause inflammatory reaction, and in severe cases, it will lead to decreased vision and blurred vision.