Limitations of laser correction ophthalmic surgery
Laser correction ophthalmic surgery is a common surgery for myopia, hyperopia and astigmatism, which can effectively improve the vision of patients. However, laser orthopaedic ophthalmic surgery is not applicable to all people, and it also has some limitations. The limitations will be described in detail from the following four aspects: surgical effect, complications, postoperative stability and surgical contraindications.
Surgical effect
The effect of laser correction ophthalmic surgery is affected by many factors. First of all, the surgical effect is related to the preoperative eye health and diopter. For some patients with insufficient corneal thickness or abnormal corneal morphology, the surgical effect may not be ideal.
Secondly, the effect of surgery may be affected by the later changes of the eyeball. With the growth of age, many people will have presbyopia and need to wear myopia or multi focus glasses. This means that even if laser correction surgery is performed, patients may still need to wear lenses to improve their vision as they grow older.
In addition, the stability of the surgical effect also needs to be considered. In some cases, the vision may regress after surgery, and it is necessary to perform surgery again or wear glasses. Therefore, when considering laser correction ophthalmic surgery, patients should pay attention to the durability of the surgical effect.
complication
Although laser ophthalmic surgery is safe, it is not without risks. Some complications may occur during the operation. The most common is dry eye after surgery. Dry eye is caused by the damage of the corneal surface nerve after surgery. Patients may have dry eyes, pain and vision loss.
In addition, if the corneal ablation process is not accurate during surgery, it may lead to irregular shape of corneal tissue, which may cause vision problems. In addition, patients may also have adverse reactions such as increased photosensitivity, night vision of the eyes or decreased perception of contrast.
Therefore, the patient should discuss the possible complications and potential risks in detail with the doctor before deciding to perform laser correction ophthalmic surgery, and weigh the advantages and disadvantages.
Postoperative stability
The postoperative stability of laser correction ophthalmic surgery is also one of its limitations. Although most patients can obtain better vision after surgery, in a small number of patients, vision may fluctuate or regress after surgery.
The corneal healing process after surgery may be affected by many factors, such as the accuracy of surgery, corneal reaction to surgery, etc. Some patients may have vision loss months or years after surgery, and need to be intervened again.
Therefore, when considering laser correction ophthalmic surgery, patients should understand the process of vision recovery after surgery and treat the stability of surgical effect rationally.
Operation contraindication
Laser correction ophthalmic surgery is not applicable to all people, and there are some surgical contraindications. First of all, pregnant women and lactating women are not suitable for laser correction surgery, because their eye conditions may change.
In addition, people with certain diseases are not suitable for surgery, such as keratitis, corneal disease, dry eye or other eye inflammation. Patients with abnormal eye morphology or excessive refraction may also be contraindicated for surgery.
Therefore, before considering laser correction ophthalmic surgery, patients should communicate with doctors in detail to ensure that they meet the surgical indications.
summary
Laser ophthalmic surgery is a common vision correction surgery, but it also has some limitations. First, the effect of surgery is sometimes affected by the later changes of the eyeball. Secondly, some complications may occur during the operation, such as dry eye. In addition, postoperative vision may fluctuate or regress, affecting the stability of the surgical effect. Finally, there are some surgical contraindications that require full communication between patients and doctors. Therefore, when considering laser correction ophthalmic surgery, patients should carefully weigh the advantages and disadvantages, and determine the indications and risks of surgery.
