Experts from Chengdu Huasha Eye Hospital said: How to choose the appropriate corrective surgery for myopia?
Myopia is a common vision problem in modern society, which has brought great trouble to people's life, study and work. How to choose the appropriate corrective surgery for myopia has become a concern of many people. In Chengdu Huasha Eye Hospital, there is a professional eye team. They provide personalized myopia correction surgery programs according to the conditions of different patients to help patients regain clear vision.
Basic principles of surgical selection
There are several basic principles to consider when selecting myopia correction surgery. First, the doctor will evaluate the patient's corneal thickness to determine whether it is suitable for corneal refractive surgery. At the same time, it is also necessary to understand the patient's age, astigmatism, pupil diameter and other factors. Secondly, doctors will choose appropriate surgical methods for patients according to their needs and expected effects. Finally, doctors will also consider the safety and reversibility of the operation to ensure that the operation does not pose too great a risk to the patient's health.
At present, the common myopia correction operations include laser corneal refractive surgery (LASIK) and surface laser surgery (PRK, LASEK). LASIK surgery is to cut the cornea to form a corneal flap, then use the laser to adjust the corneal curvature, and finally cover the flap back. PRK and LASEK surgery is to directly irradiate the laser on the corneal surface and change the corneal curvature by removing corneal epithelial cells.
Which patients are suitable for LASIK surgery?
LASIK is one of the most common myopic surgery, which is suitable for patients with high myopia. In general, patients with myopia between - 3.00D and -10.00D can consider LASIK surgery. In addition, the patient's corneal thickness needs to reach a certain standard to ensure the safety of surgery.
LASIK has the characteristics of fast and short recovery period. During the operation, the action time of the laser is very short, and the patient can obviously feel the improvement of vision within a few hours after the operation. The recovery period generally takes only a few days to a week, and can resume normal life and work in a short time.
Of course, LASIK surgery also has some risks and precautions, such as xerophthalmia, photosensitivity, postoperative infection, etc. Therefore, before receiving LASIK surgery, patients need to go through detailed ophthalmic examination to determine the feasibility of surgery.
Which patients are suitable for PRK and LASEK surgery?
Compared with LASIK, PRK and LASEK are more suitable for patients with insufficient corneal thickness or other eye diseases. Because PRK and LASEK operations do not require corneal flap cutting, the requirements for corneal thickness are relatively low.
PRK surgery is to irradiate the laser directly on the upper corneal epidermal cells, and then repair the corneal curvature through the regeneration of corneal epithelial cells. LASEK surgery is to cover a layer of softener on the upper corneal epidermal cells, and then conduct laser irradiation. After the surgery is completed, the corneal epithelial cells will be covered back.
The recovery period of PRK and LASEK surgery is relatively long, and patients need several days to weeks to recover their vision after surgery. But at the same time, PRK and LASEK are safe and have less damage to the cornea, so they are suitable for patients with special conditions.
Summary
When choosing a suitable corrective surgery for myopia, the patient needs to go through detailed ophthalmic examination, fully communicate with the doctor, and jointly develop a personalized surgical plan. Different surgical methods are suitable for different patients. LASIK is suitable for myopia patients with high degree, while PRK and LASEK are suitable for patients with insufficient corneal thickness or other eye diseases. No matter which operation method is selected, patients need to carefully follow the doctor's guidance after the operation and do a good job in postoperative nursing to ensure the maximum effect of the operation.
