High myopia is a condition in which we often see people with glasses with very thick lenses, jokingly referred to as “beer bottle bottom”. The medical term “high myopia” refers to refractive errors that are characterized by myopia greater than 600 degrees, prolongation of the eye axis, and degenerative lesions such as retinal and choroidal atrophy in the fundus of the eye. Deng Zongyong of the Ophthalmology Department of Liangping County People’s Hospital is highly myopic, which not only seriously affects personal image and daily life, but is also prone to complications, such as flying mosquitoes, posterior scleral chylomalacia, retinal atrophy, hemorrhage and fissure, subretinal neovascularization, retinal detachment, glaucoma and cataract, etc. Therefore, regular checkups and early treatment are needed. ICL surgery, also known as IOL implantation, is currently the most common surgical option for treating high myopia internationally, and its safety and effectiveness have been fully recognized. So what exactly is this treatment like? The first step is to undergo a comprehensive, rigorous and detailed pre-operative eye examination. This includes: bare eye vision, corrected visual acuity, refraction, corneal curvature, corneal thickness, corneal endothelial cell count, A/B ultrasound, slit lamp, intraocular pressure and dilated fundus examination, as well as anterior/posterior chamber depth examination to screen for a qualified history. The procedure that follows is uncomplicated and does not take long. After receiving ocular anesthesia, the surgeon will make a minimally invasive incision at the edge of the cornea, inject a gel into the eye to protect the intraocular tissue, and then push a foldable, shrinkable, extremely soft ICL lens into the eye that is gently placed behind the iris. ICL surgery is not for everyone, but the following are the indications for ICL surgery: 1) Age 21 to 45, stable refractive error in recent years, and good corrected vision. 2) Farsightedness in the range of 300 – 1000 degrees, myopia in the range of 300 – 2300 degrees, and astigmatism in the range of 100 – 400 degrees. 3. appropriate anterior chamber depth and corneal endothelial cell density within an acceptable range (this needs to be determined by the ophthalmologist through a detailed eye examination). 4. no change in spectacle prescription of more than 0.5 D within 1 year. 5. not pregnant. 6. no glasses or corneal contact lenses (RGP) acceptable for high myopia, no high intraocular pressure or glaucoma, no history of uveitis, and no other contraindications. Understanding of the possible outcomes of the procedure.7. Dry eye or thin corneas (patients who are not suitable for LASIK).