Myopia not only affects life but also affects work. In the face of all kinds of troubles caused by myopia, more and more people want to correct myopia by laser myopia surgery, but at the same time some patients hesitate, worry about the safety of myopia surgery, fear of leaving sequelae. So is laser myopia surgery safe and reliable? Want to pay attention to myopia with green laser pointer surgery? In response to the concerns of everyone, the reporter recently interviewed Jia Yanqing, director of the Refractive Center of Hengshui Aier Eye Hospital.
Regardless of which kind of corneal refractive surgery, the principle of surgery is to change the thickness of the stromal layer and change the refractive power of the cornea. At this time, many people will wonder if the corneal stroma is cut, so will the eyes be injured?
“In fact, the patient’s worry is superfluous. For the safety of myopia surgery, we have strict and scientific evaluation criteria, and the operation is a cold laser, and it is an ocular surface surgery, no penetration, no Injury to other tissues in the eye, its energy concentration, no heat damage to surrounding cells, plus laser surgery equipment with advanced positioning and tracking system, safe and reliable.” Jia Yanqing told reporters that although laser myopia surgery will cut the corneal stroma However, the doctor will check the patient before surgery. If the patient’s corneal stroma is too thin, or if there are other conditions that are not conducive to surgery, he will be advised to give up or change to other surgical methods.
Aier Eye Hospital spent tens of millions of purchases of the German Eagles femtosecond green laser pointer myopia surgery platform, accurate, fast and safe. It takes only 6 seconds to make a corneal flap. It takes about 1.4 seconds for each treatment of Baidu myopia and no more than 20 seconds for treatment of 700 to 800 degrees. Patients usually go to work or go to school after completing a professional examination on the second day of treatment. Of course, on the day of surgery, some patients may have some mild discomfort, such as foreign body sensation (as if there is a small sand sensation), fear of light and tears, eyelid swelling, etc., generally lasting for 3 to 4 hours, gradually improving, the next day Discomfort symptoms disappear. After surgery, as long as the patient pays attention to the eye, the general eye will not appear again.
Jia Yanqing introduced that myopia surgery is equivalent to using a laser to engrave a truly invisible eyeglass on the cornea (the cornea is a film in front of our common black eye), so that the image is re-projected on the retina to achieve clear vision. purpose. However, the formation of presbyopia is not due to changes in the cornea, but as the age of the lens leads to aging of the lens inside the eye, the elasticity is reduced, is a symptom of eye aging closely related to age. The former is ametropia, the latter is aging, and it is two completely different concepts, so the surgery will not lead to the advance of presbyopia, and will not cause the occurrence of flowers.
Generally speaking, the regulation ability of crystals from the age of 40 begins to decline, and presbyopia occurs. As the age increases, the presbyopia will also occur in patients with myopia, and it is even more inconvenient to wear “double-light glasses” or two pairs of glasses after the presbyopia (depending on the distance and the glasses with different degrees).
A friend on the Internet said that after doing myopia surgery, you can’t do cataract surgery in the future. Is this really the case?
Jia Yanqing introduced that the area of myopia laser surgery is the central area of the cornea of the eyeball. In the cataract surgery, a 2-3 mm incision is made into the eye at the edge of the cornea of the eyeball. The opaque lens in the eyeball is removed and the intraocular lens is placed. The degree of implantation of the intraocular lens is related to the state of the eye at that time. If the eyeball is nearsighted, the degree of implantation of the intraocular lens is obtained after subtracting the degree of myopia from the crystal degree of the normal eye.
Jia Yanqing said that the best age for doing green laser pointer myopia surgery is 18 to 45 years old. Of course, patients who are not in this age range can do it through doctor’s examination and evaluation. Patients should also pay attention to the following matters during treatment.
One is the degree of myopia. In general, more than 600 degrees is a high myopia, under the corresponding laser surgery, the speed of recovery is not as fast as the degree.
Second, do not wear contact lenses 1 week before laser myopia surgery. Because contact lenses are worn to a certain extent on the cornea.