Laser surgery for myopia
Myopia is a kind of vision problem. The patient can't see clearly on distant objects, but can see clearly on close objects. Laser surgery is one of the commonly used methods to treat myopia. The following will introduce the methods of laser surgery for myopia in Chengdu Laser Eye Hospital from different perspectives.
1. Laser principle treatment
A common method of laser surgery for myopia is to use the laser principle to change the shape of the cornea to repair vision problems. During surgery, doctors will use a device called laser keratomileusis machine. This device can release a beam of high-energy laser, which can accurately focus the light on the retina by changing the curvature of the cornea.
A common method of laser principle treatment is LASIK surgery. In this operation, doctors first use laser to make a flap like thin tissue on the cornea, then use laser to evaporate part of the corneal tissue on the overturned flap, and then put the flap like tissue back in place. This surgical method can quickly restore vision, and has less discomfort for patients.
Another method of laser principle treatment is surface laser ablation (PRK) surgery. Unlike LASIK, PRK directly applies laser to the surface of the cornea and changes the shape of the cornea by evaporating part of the corneal tissue. Compared with LASIK, PRK has a longer recovery time, but it is applicable to some patients.
2. Intraocular sinus treatment
Intraocular sinus surgery is another method of laser surgery for myopia. This method mainly uses laser to act on the iris to adjust the curvature of the iris, so as to achieve the effect of correcting vision. When the patient receives the intraocular sinus treatment, the doctor will place a specific laser in front of the eye, and operate it by observing the response of the iris.
Intraocular sinus surgery is a non-invasive method with short operation time and fast recovery period. However, because this method needs to act directly on the iris and requires high technical requirements for doctors, it needs to select experienced professional doctors for operation.
3. Focused laser treatment
Focused laser therapy is another common method of laser surgery for myopia. By using a focusing laser, doctors can form a focal point in the middle of the cornea, thereby changing the shape of the cornea and correcting myopia. Before surgery, doctors need to use specific instruments to measure the patient's eye parameters to determine the appropriate focus position.
Focused laser therapy is a relatively new method, and its effect depends on the operation technology of doctors and the quality of equipment. Compared with other laser surgery, the recovery time of focused laser therapy is longer, and patients need to take appropriate rest and care.
4. Advantages and precautions of laser therapy
Laser surgery for myopia has some obvious advantages. First of all, the operation process is simple and the pain is less. Most patients can quickly restore their vision. Secondly, laser surgery generally does not require large-scale surgery, so the risk is low. Finally, the treatment effect is obvious, most patients can significantly reduce the degree of myopia after surgery.
However, laser surgery for myopia also has some areas that need attention. First, the results of surgery may be related to the individual differences of patients, and the effects vary from person to person. Secondly, after surgery, patients need to follow the nursing suggestions given by doctors, such as the use of eyedrops, to promote recovery and prevent infection. Finally, surgery cannot completely cure myopia, and regular inspection and adjustment of glasses or contact lenses are required.
summary
There are many methods of laser surgery for myopia, including laser principle treatment, intraocular sinus treatment and focused laser treatment. These methods have their own advantages and precautions, and patients should make decisions according to their own conditions and doctors' suggestions when choosing treatment methods. As an eye hospital with rich experience, Chengdu Laser Eye Hospital provides professional laser surgery services for patients.
