Excimer laser surgery uses excimer laser to photorefractive cut the stroma layer under the corneal flap, so as to reduce the corneal curvature in the pupil area and achieve the purpose of correcting myopia (generally speaking, the cornea is regarded as a transparent material and cut into a pair of lenses). It can correct myopia of 100 degrees-1500 degrees. Judging from the current clinical results, this operation is a common operation to correct high myopia.

Excimer laser has the following obvious advantages:

① Wide adaptability: it can correct 100- 1500 degree myopia, and also can correct high astigmatism and high hyperopia.

② Slight postoperative reaction: Excimer laser completely preserved the "barrier" tissue on the corneal surface, so there was no postoperative pain, no hospitalization, no eyes, only temporary fear of light, tears and intraocular foreign body sensation.

③ Fast recovery of vision: use eyes immediately after operation, and normal vision can be recovered after several hours.

④ The effect is stable and good: ametropia can be corrected once and for all. Generally speaking, it is a one-time treatment with permanent effect.

⑤ Fast and convenient: the preoperative examination is about 1 hour, the preoperative preparation is about 10 minute, and the operation takes only a few minutes, among which the laser treatment process takes only a few seconds to several tens of seconds, and normal activities can be carried out on the day after operation without affecting life and work.

The 254th Hospital of the People's Liberation Army has experienced surgical experts, who can not only provide standard laser surgery for myopia patients, but also provide up to ten advanced personalized treatment schemes by introducing the world-advanced excimer laser system, so as to treat and improve patients' ametropia safely and effectively. The amount of myopia excimer surgery in the Department of Ophthalmology, No.254 Hospital of the People's Liberation Army is now in the forefront in Tianjin.