Advantages and disadvantages of semi-femtosecond myopia surgery

The advantages of semi-femtosecond laser surgery: 1. Wide range of adaptation, can correct myopia of 100~3000 degrees, but also can correct high astigmatism and high hyperopia. 2. Light postoperative reaction. Lesky completely retains the barrier tissue of the corneal surface. Therefore, there is no pain after surgery, no hospitalization, no eye bag, only a short fear of light, tears and intraocular foreign body sensation. 3. Fast visual recovery. Four, the effect stability is good, can correct refractive error once and for all. Five, fast and convenient. Preoperative examination about one hour, preoperative preparation about 10 minutes, surgery only takes a few minutes, of which, laser treatment process only takes a few seconds to dozens of seconds, the day after surgery can be normal activities, does not affect life and work. Disadvantages: may show complications, including: Infection, undercorrection or overcorrection, corneal perforation, iatrogenic corneal astigmatism, secondary keratoconus, irregular corneal flap, flap free epithelial implantation, glare, etc., post-corrected vision decline, night glare, visual quality decline, night vision decline and other disadvantages are also common.