Recently, a patient asked me if the wound is not healing after hemiflight surgery. Here I would like to introduce you to the healing of corneal wounds. When the cornea is traumatized or operated on, the wound will heal, which we call scar healing. If the wound is neat such as a hemiflight, it usually does not affect vision. If the wound is healed after trauma it tends to cause an opaque scar, and is often accompanied by neovascularization, this can have a big impact on vision! The scar is not as strong as the original tissue, so there is a risk of lifting and shifting the corneal flap after hemiflight surgery. Semi-femtosecond surgical approach: Indeed, I have encountered a total of 7 such cases, what is the concept? I have been engaged in refractive surgery for more than 20 years, and I can’t tell you how many cases I have done, there are more than 100,000 cases, and there are more outpatients, probably more than 150,000 patients, and there are 7 cases. Fortunately, the percentage is not high! So, there are risks associated with surgery. But from the point of view of wound healing, the risk is not very great, specific analysis of these cases are postoperative, subject to external forces, the angle of force is very coincidental, just the right angle to lift the corneal flap. So it seems that the full flight does not have this problem!