Definition of half femtosecond surgery
Half femtosecond surgery, also known as LASIK half femtosecond laser keratomileusis, is a common refractive correction surgery. The corneal surface is micro cut by laser, and then the refractive problem is corrected by laser to improve vision. The operation has the advantages of fast correction, short recovery time and less trauma.

Who is applicable to half femtosecond surgery?
Applicable object 1: ametropia
Half femtosecond surgery is applicable to myopia, hyperopia, astigmatism and other refractive errors. For myopic patients, the surgery thins the cornea through laser, so as to reduce the degree of myopia, thus significantly improving vision. For hyperopia patients, surgery can reduce the degree of hyperopia and restore normal vision by changing the shape of the cornea. For astigmatism patients, the surgery can correct the irregular shape of the cornea through laser, so that the light can be correctly focused on the retina to improve vision.
Half femtosecond surgery is a safe and effective correction method for ametropia, which can eliminate their dependence on glasses or contact lenses and improve their quality of life.
Target 2: people aged 18-45
Half femtosecond surgery is applicable to people aged 18-45. People in this age group usually have relatively stable diopter, mature eyeball structure and relatively stable surgical effect. However, people over 45 years old usually have presbyopia, and their diopter will change greatly, so they are not suitable for half femtosecond surgery.
Half femtosecond surgery for people aged 18-45 can effectively improve their vision and quality of life.
Applicable object 3: those whose corneal thickness reaches the standard
Half femtosecond surgery is suitable for people whose corneal thickness reaches the standard. The operation requires laser to micro cut the cornea, so the corneal thickness must meet certain requirements. If the corneal thickness is too thin, the operation may have adverse consequences, or even affect vision. Therefore, the doctor will conduct a detailed eye examination before surgery to determine whether the patient's corneal thickness meets the surgical conditions.
Half femtosecond surgery is performed on people whose cornea thickness reaches the standard, with more stable effect and less risk.
Applicable object 4: those with less eye lesions
Half femtosecond surgery is suitable for people with less eye lesions. Eye diseases will affect the safety and effect of surgery, so patients need to carry out a detailed eye examination before surgery to exclude the existence of other eye diseases. If there are other diseases, the half femtosecond operation can only be performed after timely treatment and stabilization.
Half femtosecond surgery is performed in people with less eye lesions, which has more stable effect and less risk.
Summary
To sum up, half femtosecond surgery is applicable to those with ametropia, who are between 18 and 45 years old, whose corneal thickness is up to standard, and who have less eye lesions. This kind of operation can correct the diopter problem through laser, improve vision and improve the quality of life. However, everyone's eye condition is unique, so before surgery, you must find a professional doctor in a regular hospital for detailed examination and consultation to determine whether it is suitable for half femtosecond surgery.