After femtosecond surgery, the naked eye cannot tell whether the patient has undergone surgery or not, but the traces of the surgery can be seen through the slit lamp, corneal topography and other ophthalmologic specialties, so it is possible to check whether the patient has undergone the surgery or not.
Femtosecond surgery is a surgical procedure for correcting refractive errors and can be categorized into full femtosecond and half femtosecond surgery. Both types of surgery correct vision by cutting away a portion of the cornea with laser energy. Because the surgery cuts the corneal tissue, a faint scar will form on the cornea, which has no effect on vision but can be seen when the patient undergoes a professional eye examination.
It is recommended that patients follow the doctor’s instructions for care after femtosecond surgery, have regular reviews, and seek prompt medical attention when discomfort occurs.