What is the difference between keratomileusis and daily wear RGP? Both keratoplasty and RGP are rigid, gas permeable corneal contact lenses, but are designed differently. Corneal shaping lenses are primarily night-wear, while RGPs are primarily day-wear. The main purpose of keratoplasty lenses is to control and slow down the development of myopia in children, so that they can be worn at night and achieve better naked eye vision during the day, free from the constraints of frame glasses. RGPs also have a role in controlling myopia development in children, with RGPs slowing the growth of myopia by 30% compared to frames and keratoplasty lenses by 50%. The requirements for keratoplasty lenses are for children and adolescents over the age of 8, with a refraction of -6.00D or less, who are nearsighted, and whose myopia is growing too rapidly. What is the early discomfort? How do I get through the adjustment period? Children may experience dry eyes, foreign body sensation, and increased nighttime secretions during the initial period of wearing keratoplasty lenses due to discomfort; they may also experience visual symptoms such as double vision, unstable vision, and near fatigue. These are the common reactions in the early stage of wearing keratoplasty, which usually last 1-2 weeks and will be significantly improved when the refractive error gradually decreases to flatness. How can I get individualized keratomileusis? Since each myopic patient has a different corneal curvature, corneal dispersion coefficient, corneal diameter and pupil diameter, the parameters of the keratoplasty lens must match the shape of the cornea to ensure proper positioning and tightness of the lens on the cornea and to further meet the requirements of degree reduction. A good fit not only helps patients to achieve good naked eye vision but also controls the development of myopia in children, while minimizing the risk of adverse reactions after lens wear. Therefore, keratoplasty lenses need to be fitted by a medical professional who understands the individual corneal differences, selects diagnostic trial lenses based on the examination results, and adjusts the parameters appropriately through the fitting assessment before customizing the lenses to match the individual cornea and refraction. What are the corresponding examinations that need to be done before the fitting of keratoplasty lenses? Before the fitting of keratoplasty lenses, slit lamp, intraocular pressure, tear, subjective and objective optometry, binocular visual function, corneal topography, etc. are required to exclude eye diseases and patients who are not suitable for wearing keratoplasty lenses. Slit lamp, eye pressure and tear examination are related to eye health; subjective and objective optometry and binocular function are related to visual acuity, refractive status and visual function; corneal topography and axis are related to corneal morphology and degree of axial myopia, which help to customize lens parameters and evaluate myopia control effect.