What are the side effects of eye laser surgery

Eye laser surgery, as an effective surgical method to correct vision, is currently very popular among patients with eye diseases. However, no surgery is foolproof, especially newer technologies such as laser. Even if the surgery is successful, some complications cannot be avoided. Before choosing laser eye surgery, you must understand its side effects.

1. Complications of laser surgery for myopia

1. The most common complication of laser surgery for myopia is overcorrection or undercorrection, which requires observation for a certain period of time and a second surgery as appropriate. Some people will experience glare, that is, seeing a light spot as a light ball or halo at night. This may be due to a slight edema reaction between the corneal tissues after surgery or a larger pupil at night with its edge close to the surgical edge, which will gradually improve with the passage of time after the operation.

2. The most serious complication of laser surgery for myopia is the infection of the corneal wound. Although this situation rarely occurs, it is an important factor in causing blindness. Therefore, a strict surgical and disinfection system and good hygiene habits of the patient are inseparable. Even after surgery, patients should have their eyes checked regularly, paying special attention to changes in the macular area of ​​the fundus and the peripheral retina, and be prepared for a rainy day.

2. Keratoconus occurs in people with this potential or whose cornea is too thin after surgery; due to poor focus on the target, eccentric cutting may occur, or a central island may appear due to the effect of water vapor vortex on the corneal surface.

3. After PRK and LASEK surgery, there may be corneal haze and hormonal high intraocular pressure caused by long-term use of drugs to combat haze.

4. LASIK has complications related to the corneal flap, such as foreign matter under the flap, corneal flap displacement, dissolution, increased astigmatism, and dry eyes.

The safety of laser correction surgery is related to the doctor's operating experience and equipment. Any corneal surgery will result in wounds, and wounds will lead to the chance of infection. If the wound of the cornea is exposed to the air after it heals, it will easily cause inflammation and infection if you do not pay attention to hygiene.

Second, the sequelae of laser surgery for myopia

1. If patients with congenital eye diseases are not carefully screened and excluded before surgery, it is very likely that the patients will be left with some sequelae after the surgery.

2. Some hospitals have screened out qualified patients before surgery. However, during the operation, doctors fail to properly grasp the scale of the operation. For example, a certain thickness of the cornea should be retained, but some doctors want to completely correct the vision of patients with high myopia and cut the cornea too thin, which leads to adverse consequences.

3. We treat myopia mainly by making our cornea flatter. However, if our cornea is too flat, it will be squeezed by the pressure from inside the eye, causing the cornea to bulge forward, but people usually cannot feel this pressure. The result of this situation is that not only does it fail to cure our myopia, but it will aggravate our myopia and even cause irreversible astigmatism.