Full laser: one-step cutting of corneal epithelium with excimer laser. It has the advantages of no knife, no flap, five negative pressures and no contact. Suitable for people with myopia below 600 degrees, especially for athletes, soldiers and policemen. Can save the cornea, corneal epithelium can heal completely after operation, without related complications caused by corneal flap, and maintain the original biomechanics of cornea to a great extent. This is a relatively safe operation method at present.
All-femtosecond laser is a new type of myopia surgery in recent years. It is different from the traditional myopia surgery, and there is no need to make corneal flap during the operation. The corneal stroma lens is directly made by full femtosecond laser, and then it is taken out through a small incision of 2-4mm, thus completing the operation. All-femtosecond laser can reduce the damage to corneal nerve fibers, reduce the impact on corneal biomechanics, greatly reduce the probability of dry eyes and complications, and thus improve the visual quality.