1.What is keratoplasty? Keratomileusis is a specially designed, high tech keratomileusis lens made of high oxygen permeable material for patients with refractive errors (myopia, hyperopia, astigmatism, presbyopia) to be worn at night while they sleep, and removed during the day to significantly improve their naked eye vision without the need for any glasses. This can temporarily eliminate or reduce the degree of myopia, farsightedness, astigmatism, presbyopia, and effectively slow down the development of myopia for the purpose of a medical technology. 2.What are the therapeutic effects of keratomileusis? Keratomileusis has two therapeutic effects: (1) It can temporarily eliminate or reduce the degree of myopia, hyperopia, astigmatism, and presbyopia. After removing the lenses during the day, the vision of the naked eye is clear and natural, and it is easy to live, study and exercise freely. (2) It can effectively curb the rapid deepening of myopia and prevent children from developing from low myopia to high myopia or even pathological myopia. 3.Is keratomileusis safe and reliable? Keratoplasty has been developed and used in the United States for nearly fifty years. It is the only non-surgical treatment for myopia correction in the world, and has been reviewed and approved for clinical use by the FDA and SFDA in China. Its safety and effectiveness have been clinically proven by various medical centers around the world and have accumulated rich experience. 4. Are there any side effects of wearing keratoconus? For example, corneal inflammation, epithelial dot staining, conjunctival congestion, and false images may occur during the wearing of keratoplasty lenses. In case of eye redness, pain, photophobia and other discomforts, it is important to suspend wearing and follow up promptly. Practice has proven that as long as scientific fitting, correct use, strict care, keratoplasty used to correct myopia, slow myopia development is safe and effective. 5.What is the effect of wearing keratomileusis? The design of the inner surface of the keratoplasty lens is very important. With conventionally designed keratoplasty lenses, most patients with less than 500 degrees of myopia can correct to 1.0 naked eye vision, achieving clear and natural naked eye vision without the need to wear any glasses during the day. Some of the well-designed keratoplasty lenses can correct a high degree of 1500 myopia, 500 degrees of farsightedness, 500 degrees of astigmatism, and most of the naked eye vision can reach 0.6 or even 0.8 or more. 6.What is the treatment principle of keratomileusis? These lenses are specially designed to be the opposite of the shape of the cornea. It is like a “mold” that reshapes the cornea through the pressure of the eyelid, the lens and the hydrodynamic effect of tears, thus reducing or increasing the refractive power of the cornea to reduce or even eliminate myopia, hyperopia, astigmatism and presbyopia. However, the cells of the corneal epithelium have a memory and will gradually return to their pre-lens shape after stopping wear. Therefore, the effect of keratoplasty lenses to reduce myopia is temporary, need to wear long-term to maintain the effect. 7.How long do keratoconus lenses last? Each pair of lenses can be used for 3 years normally. However, each person’s use varies, depending on their myopia characteristics (genetic constitution), eye hygiene habits, and care of the lenses, usually 1.5 to 2 years. 8.What are the requirements for fitting keratoplasty lenses? No other related eye diseases, no immune function problems, good hygiene habits; best correction range: myopia below 500 degrees, astigmatism below 150 degrees (special design can be made for individual height and larger astigmatism), myopia to astigmatism ratio greater than 2; corneal curvature greater than 39D, less than 46D; intraocular pressure 12-21mmHg; normal pupil size, no dry eye syndrome, etc. Specific advice from the doctor after the examination is needed. 9. What is the fitting process for keratoconus lenses? Because these lenses are made to measure, more examinations should be done during the fitting, and the whole process takes about 2 hours, and it takes about 3 weeks to a month to get the lenses made to measure. 10.What kind of people can wear keratomileusis? (1) Myopic patients. Age: 8-40 years old, especially children and teenagers whose myopia deepens faster; (2) military, civil service exams, job recruitment can not do laser surgery or do not want to do surgery. (3) Patients with farsightedness (within 500 degrees); (4) Patients with astigmatism (within 500 degrees); (5) Patients with refractive error; (6) Patients with presbyopia.