The biggest advantage of this operation is that many steps of the operation can be carried out under the guidance of femtosecond laser, and the size of incision and capsulorhexis can be accurately controlled, so the prognosis of the operation will be better than that of conventional phacoemulsification. At present, it is being carried out gradually in clinic, but the operation has strict indications. Femtosecond laser-guided surgery is usually not suitable for senile, weak or complex cataracts, such as cataracts with uveitis, diabetes and traumatic cataracts. Laser surgical treatment of cataract is also called femtosecond laser-guided phacoemulsification combined with intraocular lens implantation, and the current cost is about 15000-20000 yuan.

When cataract continues to progress, and vision loss seriously affects normal life, work and study, surgical treatment should be considered, that is, a small hole is opened in the eye to take out the turbid lens, and then a transparent intraocular lens is implanted, so as to remove the factors that prevent external light from entering the eye and improve vision. Methods of diagnosing cataract include symptoms and signs. Through patient description and doctor's physical examination, it was found that the patient had opaque lens, turbid lens, decreased vision and blurred vision. They are all functional injuries. These eye drops can delay the progress of cataract, try to maintain the existing vision and delay the operation time, but they can't reverse the visual decline caused by cataract. Instrument examination, slit lamp examination and mydriasis fundus examination can accurately diagnose whether the lens is cloudy or not, and can clearly determine the degree of lesion. It is recommended to go to the ophthalmology department of a regular hospital for diagnosis.

After cataract surgery, if there is no corneal edema, no obvious postoperative reaction in anterior chamber, no serious corneal astigmatism, and no basic disease or fundus disease, the patient can recover better vision the next day. If the patient's corneal wound astigmatism is large after operation, it will take at least one week to reduce the astigmatism and improve his vision. It will take at least one month for the wound to be completely closed. For patients with corneal edema after operation, the time of vision recovery is basically about three days to two weeks according to the degree of edema. In addition, if the patient has fundus diseases or basic diseases such as hypertension and diabetes, the postoperative vision will be improved compared with that before operation, but how much can be recovered depends on the patient's fundus.