1, what is keratoplasty A: keratoplasty is what we usually call “OK lens”, is a new type of youth myopia prevention glasses, it is through a physical shaping method, through a reasonable, programmed special design of a rigid keratoplasty lens, night, wear it on the surface of the eye, and then make the cornea in accordance with the reasonable shape we set deformation, through the corneal shape of the change can make the youth original myopia, astigmatism some problems get special effective correction, so myopia reduced or disappeared, if long-term use can make the youth myopia, astigmatism. By changing the shape of the cornea, the problems of myopia and astigmatism that existed in the youth can be corrected specifically and effectively, thus reducing or eliminating myopia. Orthopedic or shaping of the cornea is a process of gradually deforming the cornea to a more rational shape. The lenses are worn in different ways on the surface of the eye to reduce refractive error by flattening the central area of the cornea, thus effectively correcting myopia and controlling its rapid progression. 2.Why can a small piece of lens change the shape of the cornea? A: Do not underestimate such a small contact lens, but it is a special hard contact lens (generally known as ortho-K CL) designed and manufactured from highly permeable material with a geometric shape opposite to the shape of the anterior surface of the human eye. Generally speaking, soft things will be deformed with hard things, our cornea is relatively soft, and the hardness of keratoplasty lens is higher than the cornea, if we scientifically use different ways to wear it on the surface of the eye, in the process of wearing the lens, it will gradually make the cornea through the physical action of a change in shape, can promote the central area of the cornea regular flattening, in order to reduce the refractive error, thus This can effectively correct myopia and control its rapid development. Therefore, it can be considered that such a small lens contains the crystallization of modern optometry and material science, which is the new progress of science and technology in the field of contact lens material, design and processing, and ophthalmology. 3, it is a hard material made of corneal contact lens, will not damage the child’s eyes ah? A: No. Because the latest modern keratoplasty lens is made of high oxygen-permeable material by computer numerical control turning technology, with a special reverse geometry design of contact lenses. Long-term clinical observation and research by many large optometric centers at home and abroad have proved that long-term use of keratoplasty lenses will not cause any special adverse effects on the eyes. Of course, the prerequisite for safety is to go through a scientific and standardized fitting and lens wearing according to the doctor’s requirements, which can completely achieve a safe and effective effect. Moreover, the keratoplasty lenses we are introducing are all FDA-approved and SDA-approved, so there is no doubt about their safety. Therefore, rigid keratomileusis is a safe and effective way to prevent myopia in youth. 4.Is my child suitable to wear these lenses? A: Children who meet the following conditions are the best candidates for keratoplasty lenses: (1) children and adolescents with persistent myopia progression, especially those whose parents have high myopia and whose children have a genetic predisposition; (2) children with myopia below -6.50D, cis-regular corneal astigmatism below -1.50D, and retro-regular corneal astigmatism below -0.75D; (3) children who can cooperate (under 10 years old) (4) monocular myopia (wearing keratoplasty lenses can reduce binocular aberration and promote binocular monovision); (5) no corneal abnormalities, such as inflammation, degeneration, etc., and no other eye diseases; (6) corneal curvature range of 41.00D~45.50 is good, too large or too small correction difficulties; (7) have a certain (7) have a certain economic base, can afford the treatment period lenses and other costs. 5.Will my child be completely cured of myopia if he wears keratomileusis and will not need to wear frame eyes? A: This cannot be understood. Because to date, there is no 100% effective method to prevent myopia and control the development of myopia in youth, keratoplasty is a feasible and reversible non-surgical correction method to obtain clear naked eye vision. However, it is not a complete cure for myopia. If used properly, it can have a significant control and retarding effect on myopia development with long-term lens wear. Therefore, the following points need to be clarified: (1) Myopia that has already occurred cannot be eliminated by wearing keratoplasty lenses; (2) If a child wears the lenses for a period of time, has a good recovery of vision, and then stops wearing the lenses, the cornea may rebound back, resulting in failure of myopia control, and then it is necessary to insist on wearing the lenses to consolidate the effect; (3) For the growth of the eye axis of children due to increased myopia, wearing The growth rate of myopia with keratoplasty lenses is only about one half of that with frames, or even lower.