What is the principle of correcting myopia and controlling the development of myopia?

Abstract: by observing the growth of axial length in two years, keratoplasty can reduce the growth of axial length by 50%. Children with axial myopia wear frame glasses, and hyperopia defocus around the retina is more obvious. Therefore, children with rapid axial growth of axial myopia are more suitable to wear corneal shaping glasses.

corneal shaping lens can temporarily reduce the degree of myopia by changing the radian of the anterior surface of the cornea. Compared with frame glasses, it can not only correct the refractive state of the central retina, but also correct the hyperopia defocus of the peripheral retina, so as to effectively control the rapid growth of children’s ocular axis.

in recent years, a number of research results at home and abroad have confirmed that compared with single focus frame glasses, multifocal frame glasses, soft contact lenses and RGP, corneal plastic surgery can reduce the growth of ocular axis length by 50%. Children with axial myopia wear frame glasses, and hyperopia defocus around the retina is more obvious. Therefore, children with rapid axial growth of axial myopia are more suitable to wear corneal shaping glasses.