What are the types of laser eye surgery?
Disease description:
I am a 26-year-old young adult who has been troubled by myopia with a high prescription of 700 degrees. Considering the inconvenience of wearing glasses and contact lenses long-term, I have decided to consider undergoing laser eye surgery. However, I don't yet fully understand the specific types of surgery and their indications. I would like to know, what types of laser eye surgery are available?
Doctor's answer (1)
Dr. Chen Lu
Types of laser eye surgery include excimer laser surgery, semi-femtosecond laser surgery, and full-femtosecond laser surgery.
1. Excimer Laser Surgery: This is the most common type of laser surgery. The doctor uses an excimer laser to cut the corneal stroma, thinning it to change the cornea's curvature and correct refractive errors such as myopia, hyperopia, or astigmatism.
2. Semi-Femtosecond Laser Surgery: This is a minimally invasive laser procedure. The surgeon creates a small corneal flap, typically about 100 microns thick, using a femtosecond laser. The flap is then lifted, and an excimer laser precisely reshapes the underlying corneal stroma. Finally, the flap is repositioned. This technique changes the corneal curvature to correct myopia.
3. Full-Femtosecond Laser Surgery: For patients with high myopia, full-femtosecond laser surgery is an effective option. The surgeon uses a laser to create a 2- to 3-millimeter incision on the cornea, then employs the laser to form a small lens-shaped piece within the corneal stroma. Finally, the lens is removed through the incision to correct myopia.
It is recommended to visit a reputable hospital and undergo laser eye surgery under the guidance of a qualified specialist to ensure safety and surgical stability.
