Questions about excimer laser treatment for myopia

  1. How to choose the type of myopia surgery?  The choice of laser surgery is a topic of concern in the ophthalmology field, and LASIK is currently the first choice for most myopic patients. The situation abroad is more or less the same. According to two major European and American cataract and
Refractive Surgery Societies (ESCRS, ASCRS), LASIK is still the most popular refractive surgery worldwide.  Although the effectiveness of LASIK surgery for myopia has become an indisputable fact for all to see, the widespread advertising in hospitals and clinics across the country certainly creates a certain amount of confusion for patients in choosing. Excimer laser surgery is divided into 3 categories, namely PRK, LASIK and LASEK. PRK is an earlier technology, and although the corresponding correction can be achieved after this surgery, the post-operative pain is more obvious to the patient, and a certain degree of corneal clouding may occur in a few cases. LASIK is currently the mainstream procedure and is the best in terms of safety and effectiveness. The LASEK procedure is a newer version of PRK, which is actually a supplement for those who are not suitable for LASIK, only for those with particularly thin corneas and not too high myopia.  2. How to choose a hospital for LASIK surgery?  Although LASIK is a mature surgery, the key factors for the quality of the surgery are the equipment and the surgeon. The advanced level of equipment and the level of the surgeon make a world of difference in the quality of surgery. Our hospital has introduced the world’s most advanced Eagle Vision excimer workstation with small spot, flying spot scanning, infrared eye tracking and other features. We have created the first laminar flow clean operating room for ophthalmology in the city, so that the surgery is always in a sterile, non-toxic and non-polluting environment. Of course, advanced equipment is important, but the doctor’s skills and experience are the most important. Just like a musical instrument, only a first-class player can play a beautiful music. In addition, the preoperative and postoperative examination requirements for surgery are also very high. The most important thing is that you have to choose a hospital that provides complete and timely services in terms of medical level, equipment, environment and post-operative follow-up.  3. Is it safe to have myopia surgery in summer?  There are no seasonal requirements for this surgery. ①We operate in a laminar flow operating room with a constant temperature. The real operation time is very short, and the vision can be restored the next day without being affected by the hot weather. ②Washing your face after surgery is fine without letting dirty water in; ③The concern about sweating. Sweat will not flow into the eye in large quantities, and the direction of the corneal flap is the same as the direction of water flow, so there is no possibility of flushing off the corneal flap. ④ For the student population, the long summer time and not heavy academic load, enough time to prepare, more conducive to surgery recovery.  4. What is the mystery of laser treatment for myopia?  Myopia is caused by the corneal surface being too curved or the eye axis being too long. The refractive index of the cornea is the largest, accounting for 73% of the refractive system of the eye, so only a slight re-flattening of the curvature of the anterior surface of the cornea (-1.00D takes about 10U) can play the role of a four-two punch. And the only way to achieve such precision is with the excimer laser. It has: small penetrating power, stable energy, no thermal effect and good controllability. By controlling its pulse and spot through computer program control, it can be used for precise cutting of various patterns (myopia, hyperopia, astigmatism) and change the curvature of the cornea to achieve the treatment purpose.  5. Is excimer laser treatment for myopia safe?  It has been used by Dr. TROREL in the U.S. for 30 years since 1983, and has treated tens of millions of people, which has attracted the attention of ophthalmologists all over the world. Features: 193nm short-wave ultraviolet light, no thermal effect, small penetration. Cellular level cutting, with infrared tracking system, stops automatically when the eye is out of alignment. The surgery is successful and ideal as long as you have regular and systematic examination. The US FDA approved the technology in 1995. Of course, any surgery has risks, and choosing a treatment center with experienced surgeons and advanced equipment will minimize the risks.