Excimer laser: it has been published for more than 30 years, and it is the operation method of the older generation. The traditional lamellar keratome is used to make the flap, and then it is cut by excimer laser, which requires high corneal thickness. The operation process needs a certain degree of doctor's experience and the cooperation of operators. The probability of glare and dry eye after operation is relatively high, so the cost is the lowest, about 5800 in Loudi.

Semi-femtosecond laser, which has been available for 7.8 years, is a newer surgical method. It uses computer-controlled femtosecond laser and excimer laser for surgery. Compared with the traditional scalpel excimer surgery, this method is more advanced, which greatly reduces the probability of doctors making mistakes during the operation, and reduces dry eyes and glare after the operation. The price in Loudi is about 12800. At present, Loudi Aier Eye Hospital and 2065438.

Full femtosecond laser is a new generation of femtosecond laser surgery. Only Zeiss in Germany produces this kind of equipment in the world. Now it has been upgraded to the 3.0 era, because the wound caused by the operation is very small, only 2-4 MM, and only one femtosecond laser device is used for the whole operation. There is no need to open the cornea and cut it with excimer laser like the previous surgical method. The operation is more advanced than the previous operation, and the postoperative visual quality is good. It is suitable for drivers, civil aviation pilots, policemen and college entrance examination students who require high eyesight at night. At the end of May, Loudi Aier Ophthalmology and 20 18 imported a German Zeiss flight equipment from Loudi.