A week ago, Miss Wang came from Nantong to Suzhou City Eye Optometry Hospital asked to do excimer laser treatment for myopia surgery, Miss Wang said in several other hospitals have been examined, said they can not do, because the myopia is too high, not willing to give her. She heard a friend say that Suzhou Eye Hospital is a hospital specializing in eye care, so she came here with the attitude of trying. President Li Guoxing received the patient, Ms. Wang said she was more than a thousand degrees of myopia, she really did not want to wear so thick glasses, even after laser surgery to leave a three or four hundred degrees of myopia can be, so she wears glasses lenses can be thinner. President Li gave her a detailed examination and found that she had 1500 degrees of myopia in her right eye and 1400 degrees of myopia with 200 degrees of astigmatism in her left eye, and the corneal thickness of both eyes was very thin. In other words, she would have to wear 600 degrees of glasses after the laser surgery. President Li suggested her to have a posterior chamber IOL implantation for her crystalline eye. After the surgery, Ms. Wang’s vision recovered quickly and well, and she was discharged from the hospital the next day. Miss Wang was very happy, she said she did not expect the surgery to be painless at all, and it could be done in 5 minutes for one eye. Amazing, I did not expect such a good recovery of vision, before wearing glasses can only see 0.5, now both eyes actually see 1.2, she finally threw away the glasses! Even the family members accompanying her, it is difficult to see that she had surgery. So what kind of surgery did Ms. Wang do this surgery? How was the surgery done? Is this surgery safe? Are there any after-effects and complications? A. The limitations of excimer laser surgery for myopia For a long time, patients have a misconception that “high myopia is not cured, super high myopia is not cured”. However, over the years, for patients whose myopia does not exceed 1200 degrees, farsightedness does not exceed 600 degrees, and astigmatism does not exceed 600 degrees, the only method that can permanently correct their vision, other than wearing glasses or corneal contact lenses, is excimer laser surgery. Excimer laser surgery for myopia has been developed for 30 years, and the procedure has become very mature, but there are certain limitations. The procedure is simple: a thin flap is created on top of the cornea, a pair of spectacle lenses are sculpted with an excimer laser underneath the flap, and then the flap is reset to protect the eye. The higher the degree of myopia, the deeper the engraving. The remaining corneal thickness after sculpting should be of a certain thickness to ensure the safety and effectiveness of the procedure. If the patient’s corneal thickness, corneal refractive power and pupil conditions are not suitable, the number of degrees of myopia that can be subtracted is even less. So, for super high myopia of 1200 degrees or more, or high myopia with relatively thin cornea, or moderate myopia with too thin cornea, in the case of not suitable for excimer laser surgery, is there any way to get rid of the thick “beer bottle bottom” on the bridge of the nose? Like Ms. Wang, you can choose posterior chamber IOL implantation for crystalline eyes. Posterior chamber IOL implantation in crystalline eyes is also called ICL implantation, which implants a collagen polymer, artificial lens, with a thickness of only 50 microns, narrower than a hair, into the human eye, that is, the appropriate degree of “spectacle lens ICL implantation is a 50-micron-thick collagen polymer – an artificial lens – narrower than a hair, which is a “spectacle lens” of the right prescription. As the most advanced way to correct myopia, ICL implantation makes up for the areas that excimer laser correction cannot reach in the treatment of myopia, hyperopia and astigmatism. Research on implantation to correct high myopia began in the 1950s, and with the update of IOL materials, IOLs with foldability, high compatibility, and high stability have been widely used for refractive correction of cataracts and high myopia. These IOLs are scientifically designed for long-term implantation inside the eye and have good biocompatibility. After implantation, there will be no foreign body sensation inside the eye and the implant will not bond with any tissue structure, and there is no adverse reaction inside the eye. It requires no maintenance and has a good cosmetic appearance. However, not all patients with high myopia are suitable for this procedure. First of all, myopia should not have increased within 1-2 years. If you have pathological myopia and your myopia has been deepening, you can have posterior scleral reinforcement first and then have ICL implantation if your myopia has not deepened for at least 1 year after the surgery. Moreover, this surgery only implants a “lens” inside the eye and does not change the shape of the highly myopic eye, so regular eye examinations are needed after the surgery, as highly myopic eyes are prone to retinal detachment and other fundus pathologies. President Li Guoxing said, traditional laser surgery is to cut the cornea to make it flat and thin, from a certain point of view is to do “subtraction”, while refractive lens implantation in the eye a fine ultra-thin lens, can be seen as to do “addition”. Compared to traditional “subtractive” surgery, which irreversibly thins the cornea, “additive” intraocular refractive lens implantation has many advantages: the procedure involves implanting a folded ICL lens through a minimally invasive 3mm tunnel incision that requires no sutures, the procedure is painless, the surgical incision is very small, and the entire procedure requires no hospitalization. The surgery is painless, the surgical incision is small, the surgery does not require hospitalization, the entire surgery takes only about 5 minutes, and has a good safety profile. The procedure is also highly reversible and the lens can be removed or replaced if needed. Regular post-operative follow-up examinations are required, especially for fundus and intraocular pressure, and as long as these follow-up examinations are done properly, it will be safer. With over 20 years of successful experience in Europe and the United States, ICL implantation has been FDA and CE certified, and is currently the most advanced, safest, and most reasonably designed refractive surgery in the world.